[FIXED JENKINS-19557] - Improved MacroStringHelper in order to avoid substitution errors and improve performance.
Resolves https://issues.jenkins-ci.org/browse/JENKINS-19557

Signed-off-by: Oleg Nenashev <nenashev@synopsys.com>
Merge pull request #35 from synopsys-arc-oss/master

[FIXED JENKINS-19557] - Improved MacroStringHelper in order to avoid sub...