Fix startplasma-dev.sh

I don't know what language this is supposed to be, but it's certainly not bash :)

login-sessions/startplasma-dev.sh.cmake

@@ -5,11 +5,11 @@ source @CMAKE_INSTALL_FULL_LIBEXECDIR@/plasma-dev-prefix.sh
 # This is a bit of a hack done because systemd starts in pam, and we only set our dev paths after all that is complete
 # This copies everything into a transient runtime directory that systemd reads and reloads the units
 
-if [ ! -z  "$XDG_RUNTIME_DIR" ]
+if [ ! -z  "$XDG_RUNTIME_DIR" ]; then
     mkdir -p "$XDG_RUNTIME_DIR/systemd/user.control"
     command cp -r @KDE_INSTALL_FULL_SYSTEMDUSERUNITDIR@/* $XDG_RUNTIME_DIR/systemd/user.control
     systemctl --user daemon-reload
-endif
+fi
 
 
 startplasma$@