Ignore user-defined grep aliases

uninstall

@@ -29,7 +29,7 @@ remove_line() {
   line_no=1
   match=0
   while [ 1 ]; do
-    line=$(sed -n "$line_no,\$p" "$src" | grep -m1 -nF "$1") || break
+    line=$(sed -n "$line_no,\$p" "$src" | \grep -m1 -nF "$1") || break
     line_no=$(( $(sed 's/:.*//' <<< "$line") + line_no - 1 ))
     content=$(sed 's/^[0-9]*://' <<< "$line")
     match=1