change indent tabs -> spaces

mnt-sftp.sh

@@ -59,7 +59,7 @@ function mount {
     --height=400 \
     --text="Please choose. Cancel to unmount drives." \
     --title="Choose SSH server" \
-		--column "Preconfigured SSH servers" \
+    --column "Available SSH servers" \
     "<manual input>" $SSHLIST ${PRESSHLIST[*]}); then
     unmountquestion   # If you press cancel, it should ask you to unmount all drives
   fi
@@ -125,7 +125,7 @@ function mount {
 
 # Ask if all preconfigured SSHFS drives should be unmounted
 function unmountquestion {
-	zenity --question --text="Unmount all preconfigured\nSSHFS drives now?"
+  zenity --question --text="Unmount all configured\nSSHFS drives now?"
   if [ "$?" = "0" ]; then
     unmount   # unmount function
   else