updated git_foreach_branch.sh

git_foreach_branch.sh

@@ -26,6 +26,24 @@ srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 #. "$srcdir/.bash.d/functions.sh"
 . "$srcdir/.bash.d/git.sh"
 
-foreachbranch "$@"
+usage_description="
+Run a command against each Git branch in the current repo checkout
+
+Checks out each branch and runs the command, before returning to the original branch
+
+If the command fails on a branch, this script will exit and leave you checked out on that branch
+
+One use case for this is merging your trunk branch into all your feature branches in an automated manner
+
+This is powerful so use carefully!
+"
 
-git checkout master
+# used by usage() in lib/utils.sh
+# shellcheck disable=SC2034
+usage_args="<command> <args>"
+
+help_usage "$@"
+
+min_args 1 "$@"
+
+foreachbranch "$@"