help.c: wrap wait-only poll() invocation in sleep_millisec()

We want to use the new function elsewhere in a moment.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index 54f108a..328cdb7 100644
--- a/cache.h
+++ b/cache.h
@@ -1680,5 +1680,6 @@ int stat_validity_check(struct stat_validity *sv, const char *path);
 void stat_validity_update(struct stat_validity *sv, int fd);
 
 int versioncmp(const char *s1, const char *s2);
+void sleep_millisec(int millisec);
 
 #endif /* CACHE_H */