[PATCH 2/3] Make prefix_path() return char* without const

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

prefix_path() allocates new buffer. There's no reason for it to keep
the buffer for itself and waste memory.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 cache.h |    2 +-
 setup.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/cache.h b/cache.h
index 222d9cf..bd181c6 100644
--- a/cache.h
+++ b/cache.h
@@ -428,7 +428,7 @@ extern const char **get_pathspec(const char *prefix, const char **pathspec);
 extern void setup_work_tree(void);
 extern const char *setup_git_directory_gently(int *);
 extern const char *setup_git_directory(void);
-extern const char *prefix_path(const char *prefix, int len, const char *path);
+extern char *prefix_path(const char *prefix, int len, const char *path);
 extern const char *prefix_filename(const char *prefix, int len, const char *path);
 extern int check_filename(const char *prefix, const char *name);
 extern void verify_filename(const char *prefix, const char *name);
diff --git a/setup.c b/setup.c
index 833db12..f930dc0 100644
--- a/setup.c
+++ b/setup.c
@@ -4,7 +4,7 @@
 static int inside_git_dir = -1;
 static int inside_work_tree = -1;
 
-const char *prefix_path(const char *prefix, int len, const char *path)
+char *prefix_path(const char *prefix, int len, const char *path)
 {
 	const char *orig = path;
 	char *sanitized = xmalloc(len + strlen(path) + 1);
-- 
1.7.3.2.210.g045198