fsmonitor: prefer repo_git_path() to git_pathdup()

The fsmonitor_ipc__get_path() function ignores its repository argument.
It should use it when constructing repo paths (though in practice, it is
unlikely anything but the_repository is ever passed, so this is cleanup
and future proofing, not a bug fix).

Note that despite the lack of "dup" in the name, repo_git_path() behaves
like git_pathdup() and returns an allocated string.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

compat/fsmonitor/fsm-ipc-win32.c

diff --git a/compat/fsmonitor/fsm-ipc-win32.c b/compat/fsmonitor/fsm-ipc-win32.c
index 8928fa9..41984ea 100644
--- a/compat/fsmonitor/fsm-ipc-win32.c
+++ b/compat/fsmonitor/fsm-ipc-win32.c
@@ -6,6 +6,6 @@
 const char *fsmonitor_ipc__get_path(struct repository *r) {
 	static char *ret;
 	if (!ret)
-		ret = git_pathdup("fsmonitor--daemon.ipc");
+		ret = repo_git_path(r, "fsmonitor--daemon.ipc");
 	return ret;
 }