Source Mage code commit list

[Bor Kraljič <scm AT sourcemage.org>]

GIT changes to master guru-tools by Bor Kraljič <pyrobor AT ver.si>:

 smgl-keyring-diff |   16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

New commits:
commit 388752353d02e321fedf2199c469e3cbd7bc246e
Author: Bor Kraljič <pyrobor AT ver.si>
Commit: Bor Kraljič <pyrobor AT ver.si>

    smgl-keyring-diff: added option to use negative numbers
    
    Some minor changes to help msg. (help msg changes if script gets renamed)

diff --git a/smgl-keyring-diff b/smgl-keyring-diff
index 3f36a99..6532188 100755
--- a/smgl-keyring-diff
+++ b/smgl-keyring-diff
@@ -2,13 +2,17 @@
 
 if [ -z $1 ]; then
   echo
-  echo smgl-keyring-diff shows changes to the gpg keyring in git repository
+  echo $(basename $0) shows changes to the gpg keyring in git repository
   echo
-  echo To show the last change to the gurus.gpg run
-  echo smgl-keyring-diff gurus.gpg
+  echo To show the last change to the gurus.gpg run:
+  echo $(basename $0) gurus.gpg
   echo
-  echo To show change No. 1 run
-  echo smgl-keyring-diff gurus.gpg 1
+  echo To show change No. 1 run:
+  echo $(basename $0) gurus.gpg 1
+  echo
+  echo It also works with negative numbers. For example
+  echo to show preprevious change run:
+  echo $(basename $0) gurus.gpg -2
   echo
   exit 1
 fi
@@ -20,6 +24,8 @@ echo The $1 keyring has been changed $C times.
 
 if [ -z $2 ]; then
        B=1
+elif [ $2 -lt 0 ];then
+       B=$((0-$2))
 else
        B=$(($C-$2+1))
 fi