Merge pull request #5961 from bwbarrett/v3.0.x-release

dist: Update release version to 3.0.3rc3

Author: bwbarrett

VERSION

@@ -24,7 +24,7 @@ release=3
 # requirement is that it must be entirely printable ASCII characters
 # and have no white space.
 
-greek=rc2
+greek=rc3
 
 # If repo_rev is empty, then the repository version number will be
 # obtained during "make dist" via the "git describe --tags --always"