ts: adapt 50/400 tests when install manpath is default

Fix source-sh tests in 50/400 test case to adapt expected value set to
MANPATH variable when the installed MANPATH value set at configure step
is included in the default MANPATH value set for test.

Fixes #549

testsuite/modules.50-cmds/400-source-sh.exp

@@ -1612,12 +1612,26 @@ if {$install_setmanpath eq {y}} {
     } else {
         set mandirenc $install_mandir
     }
-    if {$install_appendmanpath eq {y}} {
-        set updatedmanpath $default_manpath:$install_mandir
-        set lmsourceshpath "append-path MANPATH $mandirenc|"
-    } else {
-        set updatedmanpath $install_mandir:$default_manpath
-        set lmsourceshpath "prepend-path MANPATH $mandirenc|"
+    set updated_manpath_list [split $default_manpath :]
+    set is_default_manpath_updated 0
+    foreach install_manpath_elt [split $install_mandir :] {
+        if {$install_manpath_elt ni $updated_manpath_list} {
+            if {$install_appendmanpath eq {y}} {
+                lappend updated_manpath_list $install_manpath_elt
+            } else {
+                set updated_manpath_list [linsert $updated_manpath_list 0 $install_manpath_elt]
+            }
+            set is_default_manpath_updated 1
+        }
+    }
+    set updatedmanpath [join $updated_manpath_list :]
+
+    if {$is_default_manpath_updated} {
+        if {$install_appendmanpath eq {y}} {
+            set lmsourceshpath "append-path MANPATH $mandirenc|"
+        } else {
+            set lmsourceshpath "prepend-path MANPATH $mandirenc|"
+        }
     }
 }
 # setup PATH without Modules bin location
@@ -1647,13 +1661,13 @@ if {$install_versioning eq {y}} {
 lappend ans [list set MODULE_VERSION_STACK $install_version]
 }
 # MANPATH is set before PATH if the latter is appended and not the former
-if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n}} {
+if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n} && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $updatedmanpath]
 }
 if {$install_setbinpath eq {y}} {
 lappend ans [list set PATH $updatedpath]
 }
-if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y})} {
+if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y}) && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $updatedmanpath]
 }
 lappend ans [list set _LMFILES_ $mp/source-sh/1]
@@ -1703,7 +1717,7 @@ set extratserr {}
 set tserr "-------------------------------------------------------------------
 $mp/source-sh/1:\n\n"
 set tserr_path {}
-if {$install_setmanpath eq {y}} {
+if {$install_setmanpath eq {y} && $is_default_manpath_updated} {
     if {$install_appendmanpath eq {y}} {
         append tserr_path "append-path\tMANPATH $mandirenc\n"
     } else {
@@ -1754,13 +1768,13 @@ if {$install_versioning eq {y}} {
 lappend ans [list set MODULE_VERSION_STACK $install_version]
 }
 # MANPATH is set before PATH if the latter is appended and not the former
-if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n}} {
+if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n} && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $updatedmanpath]
 }
 if {$install_setbinpath eq {y}} {
 lappend ans [list set PATH $updatedpath]
 }
-if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y})} {
+if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y}) && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $updatedmanpath]
 }
 lappend ans [list set _LMFILES_ $mp/source-sh/1]
@@ -1792,13 +1806,13 @@ if {$install_versioning eq {y}} {
 lappend ans [list set MODULE_VERSION_STACK $install_version]
 }
 # MANPATH is set before PATH if the latter is appended and not the former
-if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n}} {
+if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n} && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $updatedmanpath]
 }
 if {$install_setbinpath eq {y}} {
 lappend ans [list set PATH $updatedpath]
 }
-if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y})} {
+if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y}) && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $updatedmanpath]
 }
 lappend ans [list set _LMFILES_ $modpath/setenv/1.0:$mp/source-sh/1]
@@ -1829,19 +1843,19 @@ setenv_var MODULES_COLLECTION_TARGET bar
 if {$install_setbinpath eq {y}} {
 setenv_var PATH $updatedpath
 }
-if {$install_setmanpath eq {y}} {
+if {$install_setmanpath eq {y} && $is_default_manpath_updated} {
 setenv_var MANPATH $updatedmanpath
 }
 setenv_var __MODULES_LMSOURCESH source-sh/1\&bash\ testsuite/example/sh-to-mod.sh\|${lmsourceshpath}setenv\ MODULES_COLLECTION_TARGET\ bar\|setenv\ testsuite\ yes
 set ans [list]
 # MANPATH is set before PATH if the latter is appended and not the former
-if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n}} {
+if {$install_setmanpath eq {y} && $install_appendbinpath eq {y} && $install_appendmanpath eq {n} && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $default_manpath]
 }
 if {$install_setbinpath eq {y}} {
 lappend ans [list set PATH $default_path]
 }
-if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y})} {
+if {$install_setmanpath eq {y} && ($install_appendbinpath eq {n} || $install_appendmanpath eq {y}) && $is_default_manpath_updated} {
 lappend ans [list set MANPATH $default_manpath]
 }
 lappend ans [list unset _LMFILES_]