Add VER to the list of known LCov directives (#414)

* Fix description for LcovCoverageReporter

* Add VER to the list of known LCov directives

Add VER directive to the list of known directives to support the LCov reports with it. VER is an optional directive that can be added by some tools. For example, gcovr is adding it right now.

diff_cover/violationsreporters/violations_reporter.py

@@ -264,7 +264,7 @@ def measured_lines(self, src_path):
 
 class LcovCoverageReporter(BaseViolationReporter):
     """
-    Query information from a Cobertura|Clover|JaCoCo XML coverage report.
+    Query information from a LCov coverage report.
     """
 
     def __init__(self, lcov_roots, src_roots=None):
@@ -324,6 +324,7 @@ def parse(lcov_file):
                 "BRF",
                 "BRH",
                 "BRDA",
+                "VER",
             ]:
                 # these are valid lines, but not we don't need them
                 continue