[PATCH] canonicalize: Fix uninitialized 'dest' in realpath_stk for glibc 2.35 [BZ #32577]

[Nikhil R]

Fixes a GCC warning when compiling with the '-Os' optimization flag:
| canonicalize.c: In function 'realpath_stk':
| canonicalize.c:424:50: error: 'dest' may be used uninitialized in this function [-Werror=maybe-uninitialized]
|   424 |   return scratch_buffer_dupfree (rname_buf, dest - rname);

Issue specific to glibc 2.35.

Signed-off-by: Nikhil R <nikhilar2410@gmail.com>
---
 stdlib/canonicalize.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdlib/canonicalize.c b/stdlib/canonicalize.c
index 6caed9e70e..061d3b3062 100644
--- a/stdlib/canonicalize.c
+++ b/stdlib/canonicalize.c
@@ -198,7 +198,7 @@ static char *
 realpath_stk (const char *name, char *resolved,
               struct scratch_buffer *rname_buf)
 {
-  char *dest;
+  char *dest = NULL;
   char const *start;
   char const *end;
   int num_links = 0;
-- 
2.17.1