style(bash): remove unnecessary space stripping in help output

- Simplifies the sed command by removing redundant space trimming.

snippets/bash/show_help.sh

@@ -13,7 +13,7 @@ show_help() {
   sed -n '/^#=== HELP START ===/,/^#=== HELP END ===/ {
     /^#=== HELP START ===/d
     /^#=== HELP END ===/d
-    s/^# *//
+    s/^#//
     p
   }' "$0"
 }