fix(pkgs): modelines

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

pkgs/bins/bin/ports

@@ -1,5 +1,6 @@
 #!/usr/bin/env nix-shell
 #!nix-shell -i bash -p lsof
+# vim: set ft=bash
 # manage processes by the ports they are using
 case "$1" in
 ls)