Merge branch 'jm/maint-misc-fix' into maint

* jm/maint-misc-fix:
  read_gitfile_gently: use ssize_t to hold read result
  remove tests of always-false condition
  rerere.c: diagnose a corrupt MERGE_RR when hitting EOF between TAB and '\0'

setup.c

@@ -275,7 +275,7 @@ const char *read_gitfile_gently(const char *path)
 	const char *slash;
 	struct stat st;
 	int fd;
-	size_t len;
+	ssize_t len;
 
 	if (stat(path, &st))
 		return NULL;