grep: warning: stray \ before /

[briantully]

When switching php versions I get the following output

You will need sudo power from now on
Switching your apache conf
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
Password:
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
grep: warning: stray \ before /
Restarting apache
All done!

Any idea what the issue is?