more Unixy help message format

Author: X1011

deploy.sh

@@ -3,12 +3,9 @@ set -o errexit #abort if any command fails
 me=$(basename "$0")
 
 help_message="\
+Usage: $me [<options>]
 Deploy generated files to a git branch.
 
-Usage:
-
-  $me [<options>]
-
 Options:
 
   -h, --help               Show this help information.
@@ -23,9 +20,9 @@ Options:
 
 Variables:
 
-  * GIT_DEPLOY_DIR      Folder path containing the files to deploy.
-  * GIT_DEPLOY_BRANCH   Commit deployable files to this branch.
-  * GIT_DEPLOY_REPO     Push the deploy branch to this repository.
+  GIT_DEPLOY_DIR      Folder path containing the files to deploy.
+  GIT_DEPLOY_BRANCH   Commit deployable files to this branch.
+  GIT_DEPLOY_REPO     Push the deploy branch to this repository.
 
 These variables have default values defined in the script. The defaults can be
 overridden by environment variables. Any environment variables are overridden