Fix a warning in CoverageMappingReader.cpp

llvm-svn: 213920
diff --git a/llvm/lib/ProfileData/CoverageMappingReader.cpp b/llvm/lib/ProfileData/CoverageMappingReader.cpp
index 83c707f..72dbb6c 100644
--- a/llvm/lib/ProfileData/CoverageMappingReader.cpp
+++ b/llvm/lib/ProfileData/CoverageMappingReader.cpp
@@ -123,7 +123,7 @@
                                                    << Counter::EncodingTagBits;
 
 /// \brief Read the sub-array of regions for the given inferred file id.
-/// \param NumFileIDs: the number of file ids that are defined for this
+/// \param NumFileIDs the number of file ids that are defined for this
 /// function.
 std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
     std::vector<CounterMappingRegion> &MappingRegions, unsigned InferredFileID,