system: Don't assume the git version is set.

diff --git a/core/system/system.factor b/core/system/system.factor
index 5dc6a19da59aac831ee8dc0a9c0e9bf04a233b60..5c429d35866d6e68eca2d9422a6e077874e4eca1 100644 (file)
--- a/core/system/system.factor
+++ b/core/system/system.factor
@@ -80,7 +80,7 @@ PRIVATE>
         "Factor " % vm-version %
         " " % cpu cpu>string %
         " (" % build # ", " %
-        split-vm-git-label [ % "-" % ] [ 10 head % ] bi* ", " %
+        split-vm-git-label [ % "-" % ] [ 10 short head % ] bi* ", " %
         vm-compile-time % ")\n[" %
         vm-compiler % "] on " % os os>string %
     ] "" make ;