Watch for empty response when getting current line.HEADmaster

- When we query the current line from the terminal, there
  are situations when that might time out and yield a blank
  response. In basta.check_cursor, we guard against that, or
  else the user may, rarely, see a message complaining that
  the [ command is missing an operand for the -gt operator.

1 files changed, 1 insertions, 1 deletions

diff --git a/basta.sh b/basta.sh
index 776ab4e..962e8c6 100644
--- a/basta.sh
+++ b/basta.sh
@@ -99,7 +99,7 @@ basta.check_cursor()
     local exit=$?
     local curln=$(basta.get_cur_line)
 
-    if [ $curln -gt $basta_scroll_lines ]; then
+    if [ $curln ] && [ $curln -gt $basta_scroll_lines ]; then
       printf $'\e[%s;1H' $basta_scroll_lines
     fi
   fi