builtin/commit: reset terminal after calling EDITOR

When EDITOR is invoked to modify a commit message, it will likely
change the console settings, and if it misbehaves, will leave the
console output as shown in microsoft/terminal#9359.

Use the recently added {push,pop}_term() functions to save the
terminal state and recover safely, instead.

[1] microsoft/terminal#9359

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>

builtin/commit.c

@@ -36,6 +36,7 @@
 #include "help.h"
 #include "commit-reach.h"
 #include "commit-graph.h"
+#include "compat/terminal.h"
 
 static const char * const builtin_commit_usage[] = {
 	N_("git commit [<options>] [--] <pathspec>..."),
@@ -1074,11 +1075,14 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 		struct strvec env = STRVEC_INIT;
 
 		strvec_pushf(&env, "GIT_INDEX_FILE=%s", index_file);
+		push_term(1);
 		if (launch_editor(git_path_commit_editmsg(), NULL, env.v)) {
+			pop_term();
 			fprintf(stderr,
 			_("Please supply the message using either -m or -F option.\n"));
 			exit(1);
 		}
+		pop_term();
 		strvec_clear(&env);
 	}