mingw: allow hooks to be .exe files

This change is necessary to allow the files in .git/hooks/ to optionally
have the file extension `.exe` on Windows, as the file names are
hardcoded otherwise.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

run-command.c

@@ -871,8 +871,14 @@ const char *find_hook(const char *name)
 
 	strbuf_reset(&path);
 	strbuf_git_path(&path, "hooks/%s", name);
-	if (access(path.buf, X_OK) < 0)
+	if (access(path.buf, X_OK) < 0) {
+#ifdef STRIP_EXTENSION
+		strbuf_addstr(&path, STRIP_EXTENSION);
+		if (access(path.buf, X_OK) >= 0)
+			return path.buf;
+#endif
 		return NULL;
+	}
 	return path.buf;
 }