BUG/MEDIUM: server: Wrong server default CRT filenames initialization.

This patch fixes a bug which came with 5e57643 commit where server
default CRT filenames were initialized to the same value as server
default CRL filenames.
diff --git a/src/server.c b/src/server.c
index eedd878..0795e25 100644
--- a/src/server.c
+++ b/src/server.c
@@ -1832,7 +1832,7 @@
 			if (curproxy->defsrv.ssl_ctx.crl_file != NULL)
 				newsrv->ssl_ctx.crl_file = strdup(curproxy->defsrv.ssl_ctx.crl_file);
 			if (curproxy->defsrv.ssl_ctx.client_crt != NULL)
-				newsrv->ssl_ctx.client_crt = strdup(curproxy->defsrv.ssl_ctx.crl_file);
+				newsrv->ssl_ctx.client_crt = strdup(curproxy->defsrv.ssl_ctx.client_crt);
 			newsrv->ssl_ctx.verify = curproxy->defsrv.ssl_ctx.verify;
 			if (curproxy->defsrv.ssl_ctx.verify_host != NULL)
 				newsrv->ssl_ctx.verify_host = strdup(curproxy->defsrv.ssl_ctx.verify_host);