[PATCH v3 13/14] read-cache.c: initialize copy_len to shut up gcc 8

[Nguyễn Thái Ngọc Duy]

It was reported that when building with NO_PTHREADS=1,
-Wmaybe-uninitialized is triggered. Just initialize the variable from
the beginning to shut the compiler up (because this warning is enabled
in config.dev)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 read-cache.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/read-cache.c b/read-cache.c
index 00cd416816..c510f598b1 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1746,7 +1746,7 @@ static struct cache_entry *create_from_disk(struct 
mem_pool *ce_mem_pool,
        size_t len;
        const char *name;
        unsigned int flags;
-       size_t copy_len;
+       size_t copy_len = 0;
        /*
         * Adjacent cache entries tend to share the leading paths, so it makes
         * sense to only store the differences in later entries.  In the v4
@@ -1786,8 +1786,6 @@ static struct cache_entry *create_from_disk(struct 
mem_pool *ce_mem_pool,
                                die(_("malformed name field in the index, near 
path '%s'"),
                                        previous_ce->name);
                        copy_len = previous_len - strip_len;
-               } else {
-                       copy_len = 0;
                }
                name = (const char *)cp;
        }
-- 
2.19.1.1005.gac84295441