krb5 commit [krb5-1.13]: Work around uninitialized warning in cc_kcm.c

[Tom Yu]

https://github.com/krb5/krb5/commit/5cfdda24a05754653d3d0d989db56976602a7ec0
commit 5cfdda24a05754653d3d0d989db56976602a7ec0
Author: Tom Yu <tlyu at mit.edu>
Date:   Wed Jan 6 15:24:16 2016 -0500

    Work around uninitialized warning in cc_kcm.c
    
    Some versions of clang erroneously detect use of an uninitialized
    variable reply_len in kcmio_call() when building on non-Mac platforms.
    Initialize it to work around this warning.
    
    (cherry picked from commit 40b007c0d8e2a12c6f4205ac111dee731c9d970c)
    
    ticket: 8335
    version_fixed: 1.13.4
    tags: -pullup
    status: resolved

 src/lib/krb5/ccache/cc_kcm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/lib/krb5/ccache/cc_kcm.c b/src/lib/krb5/ccache/cc_kcm.c
index b763ea4..6337b57 100644
--- a/src/lib/krb5/ccache/cc_kcm.c
+++ b/src/lib/krb5/ccache/cc_kcm.c
@@ -377,7 +377,7 @@ static krb5_error_code
 kcmio_call(krb5_context context, struct kcmio *io, struct kcmreq *req)
 {
     krb5_error_code ret;
-    size_t reply_len;
+    size_t reply_len = 0;
 
     if (k5_buf_status(&req->reqbuf) != 0)
         return ENOMEM;