Merge branch 'jn/scripts-updates'

* jn/scripts-updates:
  remove #!interpreter line from shell libraries
  test: replace shebangs with descriptions in shell libraries
  test: make FILEMODE a lazy prereq
  contrib: remove git-p4import
  mark contributed hooks executable
  mark perl test scripts executable
  mark Windows build scripts executable

t/test-lib.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+# Test framework for git.  See t/README for usage.
 #
 # Copyright (c) 2005 Junio C Hamano
 #
@@ -577,11 +577,9 @@ then
 
 	make_valgrind_symlink () {
 		# handle only executables, unless they are shell libraries that
-		# need to be in the exec-path.  We will just use "#!" as a
-		# guess for a shell-script, since we have no idea what the user
-		# may have configured as the shell path.
+		# need to be in the exec-path.
 		test -x "$1" ||
-		test "#!" = "$(head -c 2 <"$1")" ||
+		test "# " = "$(head -c 2 <"$1")" ||
 		return;
 
 		base=$(basename "$1")
@@ -834,6 +832,10 @@ test_lazy_prereq SYMLINKS '
 	ln -s x y && test -h y
 '
 
+test_lazy_prereq FILEMODE '
+	test "$(git config --bool core.filemode)" = true
+'
+
 test_lazy_prereq CASE_INSENSITIVE_FS '
 	echo good >CamelCase &&
 	echo bad >camelcase &&