Using 'perl' in *.sh

Some GIT's shell script are using bare 'perl' for perl invocation.
Use @@PERL@@ symbol and replace it with PERL_PATH_SQ everywhere.

Signed-off-by: Michal Rokos <michal.rokos@nextsoft.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>

git-commit.sh

@@ -147,7 +147,7 @@ run_status () {
 	    git-ls-files -z --others $option \
 		--exclude-per-directory=.gitignore
 	fi |
-	perl -e '$/ = "\0";
+	@@PERL@@ -e '$/ = "\0";
 	    my $shown = 0;
 	    while (<>) {
 		chomp;