Spelling fixes

ChangeLog

@@ -972,7 +972,7 @@ sox-12.18.1	2006-05-07
 
   o The "filter" effect could go into infinite drain mode.  Now
     only drain 1 buffer.  noisered as well.
-  o SoX was ignoring user aborts (ctrl-c) if it occured during
+  o SoX was ignoring user aborts (ctrl-c) if it occurred during
     effect drain operations.  This was bad if effects had
     bugs and stuck in infinite loop.
   o Stop SoX from crashing when file type could not be auto

libsox.3

@@ -175,7 +175,7 @@ failures. Currently, relies on \fBsox_warn\fR to print information.
 successfully read or written. If an error occurs, or the end-of-file
 is reached, the return value is a short item count or SOX_EOF. TODO:
 \fBsox_read\fR does not distiguish between end-of-file and error. Need
-an feof() and ferror() concept to determine which occured.
+an feof() and ferror() concept to determine which occurred.
 .P
 Upon successful completion \fBsox_close\fR returns 0. Otherwise, SOX_EOF
 is returned. In either case, any further access (including another

src/fap.c

@@ -26,7 +26,7 @@ LSX_FORMAT_HANDLER(fap)
   static sox_format_handler_t handler;
   handler = *lsx_sndfile_format_fn();
   handler.description =
-    "Ensoniq PARIS digitial audio editing system (little endian)";
+    "Ensoniq PARIS digital audio editing system (little endian)";
   handler.names = names;
   handler.write_formats = write_encodings;
   return &handler;

src/paf.c

@@ -26,7 +26,7 @@ LSX_FORMAT_HANDLER(paf)
   static sox_format_handler_t handler;
   handler = *lsx_sndfile_format_fn();
   handler.description =
-    "Ensoniq PARIS digitial audio editing system (big endian)";
+    "Ensoniq PARIS digital audio editing system (big endian)";
   handler.names = names;
   handler.write_formats = write_encodings;
   return &handler;