builtin/apply: move 'options' variable into cmd_apply()

The 'options' variable doesn't need to be static and global to the
file. It can be local to cmd_apply(), so let's move it there.

This will make it easier to libify the apply functionality.

Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/apply.c

@@ -79,7 +79,6 @@ static enum ws_ignore {
 static const char *patch_input_file;
 static struct strbuf root = STRBUF_INIT;
 static int read_stdin = 1;
-static int options;
 
 static void parse_whitespace_option(const char *option)
 {
@@ -4517,6 +4516,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix_)
 	int errs = 0;
 	int is_not_gitdir = !startup_info->have_repository;
 	int force_apply = 0;
+	int options = 0;
 
 	const char *whitespace_option = NULL;