Enable syntax highlighting/linting for scriptlets

Various editors depend on the shebang line to determine what language
to use for syntax highlighting and/or linting.  Therefore add one.  It
is ignored when sourcing and the scriplets are not executable so the
shebang will never be used.

Signed-off-by: Daniel F. Dickinson <[email protected]>

scripts/common

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 log (){
 	date +"[%T] $*" | tee -a "${LOG_FILE}"
 }