mesa: add usage examples to get-pick-list and shortlog scripts

NOTE: This is a candidate for the stable branches.

bin/get-pick-list.sh

@@ -1,6 +1,12 @@
 #!/bin/sh
 
 # Script for generating a list of candidates for cherry-picking to a stable branch
+#
+# Usage examples:
+#
+# $ bin/get-pick-list.sh
+# $ bin/get-pick-list.sh > picklist
+# $ bin/get-pick-list.sh | tee picklist
 
 # Grep for commits with "cherry picked from commit" in the commit message.
 git log --reverse --grep="cherry picked from commit" origin/master..HEAD |\

bin/shortlog_mesa.sh

@@ -2,6 +2,12 @@
 
 # This script is used to generate the list of changes that
 # appears in the release notes files, with HTML formatting.
+#
+# Usage examples:
+#
+# $ bin/shortlog_mesa.sh mesa-9.0.2..mesa-9.0.3
+# $ bin/shortlog_mesa.sh mesa-9.0.2..mesa-9.0.3 > changes
+# $ bin/shortlog_mesa.sh mesa-9.0.2..mesa-9.0.3 | tee changes
 
 
 typeset -i in_log=0