termux-usb: fix -E arg

It was forgotten in the getopts options.

Also remove MASK check, with more options it is more tricky to keep
track of how many args we should have just after the getopts loop.

Author: Grimler91

scripts/termux-usb.in

@@ -3,7 +3,7 @@ set -e -u
 
 SCRIPTNAME=termux-usb
 show_usage () {
-    echo "Usage: $SCRIPTNAME [-l | [-r] [-e command] device]"
+    echo "Usage: $SCRIPTNAME [-l | [-r] [-E] [-e command] [device]"
     echo "List or access USB devices. Devices cannot be accessed directly,"
     echo "                 only using $SCRIPTNAME."
     echo "  -l           list available devices"
@@ -18,22 +18,19 @@ show_usage () {
 
 ACTION="permission"
 PARAMS=""
-MASK=0
-while getopts :hlre: option
+while getopts :hlre:E option
 do
     case "$option" in
         h) show_usage;;
-        l) ACTION="list"; ((MASK |= 1));;
-        r) PARAMS="$PARAMS --ez request true"; ((MASK |= 2));;
-        e) ACTION="open"; export TERMUX_CALLBACK="$OPTARG"; ((MASK |= 2));;
+        l) ACTION="list";;
+        r) PARAMS="$PARAMS --ez request true";;
+        e) ACTION="open"; export TERMUX_CALLBACK="$OPTARG";;
         E) export TERMUX_EXPORT_FD=true;;
         ?) echo "$SCRIPTNAME: illegal option -$OPTARG"; exit 1;
     esac
 done
 shift $((OPTIND-1))
 
-if [ $MASK -eq 3 ]; then echo "$SCRIPTNAME: -l cannot be combined with other options"; exit 1; fi
-
 if [ "$ACTION" == "list" ]
 then
     if [ $# -gt 0 ]; then echo "$SCRIPTNAME: too many arguments"; exit 1; fi