adapt to tycho-compiler-jdt 0.19.0

org.eclipse.tycho:tycho-compiler-jdt:0.19.0 generates locations as "[line]" not "[line, column]" as before;
see https://issues.jenkins-ci.org/browse/JENKINS-21377
JENKINS-21377 add test
Merge pull request #35 from codesimplicity/JENKINS-21377

[FIXED JENKINS-21377] Update of regexp for tycho-compiler-jdt 0.19.0