[PATCH] configure.ac: Add missing comma to CC_LD_DYNPATH

["Øyvind A. Holm" <sunny@sunbase.org>]

From: "Øyvind A. Holm" <sunny@sunbase.org>

40bfbde ("build: don't duplicate substitution of make variables",
2012-09-11) breaks make by removing a necessary comma at the end of
"CC_LD_DYNPATH=-rpath" in line 414 and 423.

When executing "./configure --with-zlib=PATH", this resulted in

      [...]
      CC xdiff/xhistogram.o
      AR xdiff/lib.a
      LINK git-credential-store
  /usr/bin/ld: bad -rpath option
  collect2: ld returned 1 exit status
  make: *** [git-credential-store] Error 1
  $

during make.

Signed-off-by: Øyvind A. Holm <sunny@sunbase.org>
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index da1f41f..ea79ea2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -411,7 +411,7 @@ else
       LDFLAGS="${SAVE_LDFLAGS}"
    ])
    if test "$git_cv_ld_wl_rpath" = "yes"; then
-      CC_LD_DYNPATH=-Wl,-rpath
+      CC_LD_DYNPATH=-Wl,-rpath,
    else
       AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [
          SAVE_LDFLAGS="${LDFLAGS}"
@@ -420,7 +420,7 @@ else
          LDFLAGS="${SAVE_LDFLAGS}"
       ])
       if test "$git_cv_ld_rpath" = "yes"; then
-         CC_LD_DYNPATH=-rpath
+         CC_LD_DYNPATH=-rpath,
       else
          CC_LD_DYNPATH=
          AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
-- 
1.8.0.rc1