Stamp HEAD as 14devel.

Let the hacking begin ...

src/tools/git_changelog

@@ -57,6 +57,7 @@ require IPC::Open2;
 # (We could get this from "git branches", but not worth the trouble.)
 # NB: master must be first!
 my @BRANCHES = qw(master
+  REL_13_STABLE
   REL_12_STABLE REL_11_STABLE REL_10_STABLE REL9_6_STABLE REL9_5_STABLE
   REL9_4_STABLE REL9_3_STABLE REL9_2_STABLE REL9_1_STABLE REL9_0_STABLE
   REL8_4_STABLE REL8_3_STABLE REL8_2_STABLE REL8_1_STABLE REL8_0_STABLE

src/tools/version_stamp.pl

@@ -25,7 +25,7 @@ use warnings;
 
 # Major version is hard-wired into the script.  We update it when we branch
 # a new development version.
-my $majorversion = 13;
+my $majorversion = 14;
 
 # Validate argument and compute derived variables
 my $minor = shift;