Cleanup tools scripts

* whitespace and comment cleanups only

Change-Id: I4e631e9a9b8151758dc8c96b3aef76b963d5ea7e
diff --git a/tools/build_bm.sh b/tools/build_bm.sh
index 44cf303..b2d4c36 100755
--- a/tools/build_bm.sh
+++ b/tools/build_bm.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+
+# **build_bm.sh**
+
 # Build an OpenStack install on a bare metal machine.
 set +x