commitid.scad.pl: docs updates

diff --git a/commitid.scad.pl b/commitid.scad.pl
index be58d4cd67ee8e5e1ef89a8db505b8ad4cbfba60..de1efa87586485c334880cd624607565d332ede4 100755 (executable)
--- a/commitid.scad.pl
+++ b/commitid.scad.pl
@@ -37,6 +37,7 @@ $SIG{__WARN__} = sub { die @_; };
 #   Tiny8:
 #       git rev-list --first-parent --count HEAD
 #       typically 3-4 characters but we allow for up to 6
+#       padded with zeroes; if too long we reduce mod 10^n
 #       eg
 #            Tiny4    1070
 #
@@ -47,10 +48,10 @@ $SIG{__WARN__} = sub { die @_; };
 #            Tiny4Q   10
 #                     70
 #
-#   Git4
-#   Git6
-#   Git8
-#       git-rev-parse HEAD
+#   Git4  Git4Q
+#   Git6  Git6Q
+#   Git8  Git8Q
+#       git-rev-parse HEAD   (prefix of requested length)
 #       eg
 #            Git6    82f2a2