t4017 (diff-retval): replace manual exit code check with test_expect_code

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 8228e883e6c5aba64ee4aa691b624b451f0b3946..75b8b3cc6978f3b977f66ec0039e745bc6b044cb 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v1.7.2.1
+DEF_VER=v1.7.3.1
 
 LF='
 '