Issue #5208: avoid error code from grep if nothing found
Issue #5208: avoid error code from grep if nothing found

checkstyle/checkstyle,checkstyle/checkstyle,rnveach/checkstyle,romani/checkstyle,romani/checkstyle,checkstyle/checkstyle,rnveach/checkstyle,checkstyle/checkstyle,romani/checkstyle,jonmbake/checkstyle,checkstyle/checkstyle,romani/checkstyle,romani/checkstyle,jonmbake/checkstyle,romani/checkstyle,rnveach/checkstyle,rnveach/checkstyle,jonmbake/checkstyle,rnveach/checkstyle,rnveach/checkstyle,checkstyle/checkstyle