# We have our own implementation because:
# - our algorighm can do fewer tests so is faster
# - it saves testing to see if gdr is installed
+
+ # NB we use this jsut for deciding whether to run gdr make-patches
+ # Before reusing this algorithm for somthing else, its
+ # suitability should be reconsidered.
+
my $walk = $head;
local $Debian::Dgit::debugcmd_when_debuglevel = 3;
printdebug "branch_is_gdr $head...\n";