travis-ci: express Linux/OS X dependency versions more clearly

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index b872b6e7d6e5067b7f080217a66f0b9d45c4931b..b5072a28ed488a2d0a1da85d04d7ae93e1a39105 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v2.8.0-rc0
+DEF_VER=v2.8.0-rc4
 
 LF='
 '