changed sh to bash, otherwise 'run' function threw errors

.config/bspwm/bspwmrc

@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /bin/bash
 
 bspc monitor -d I II III IV V VI VII VIII IX X
 
@@ -30,7 +30,7 @@ bspc rule -a Zathura state=tiled
 
 # function to check if a program already runs
 # if not, start it
-function run {
+function run () {
     if ! pgrep $1>/dev/null ; then
         $@&
     fi