Clarify comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140787 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-cov/GCOVReader.h b/tools/llvm-cov/GCOVReader.h
index 67199db..98a556c 100644
--- a/tools/llvm-cov/GCOVReader.h
+++ b/tools/llvm-cov/GCOVReader.h
@@ -35,7 +35,7 @@
   GCDA_404
 };
 
-/// GCOVBuffer - A wrapper around MemoryBuffer to provid GCOV specific
+/// GCOVBuffer - A wrapper around MemoryBuffer to provide GCOV specific
 /// read operations.
 class GCOVBuffer {
 public:
@@ -152,7 +152,8 @@
   uint64_t Cursor;
 };
 
-/// GCOVFile - Collects file information.
+/// GCOVFile - Collects coverage information for one pair of coverage file
+/// (.gcno and .gcda).
 class GCOVFile {
 public:
   GCOVFile() {}
@@ -218,7 +219,6 @@
   StringMap<LineCounts> LineInfo;
 };
 
-
 }
 
 #endif
diff --git a/tools/llvm-cov/llvm-cov.cpp b/tools/llvm-cov/llvm-cov.cpp
index 0ecb28a..5e4c1ec 100644
--- a/tools/llvm-cov/llvm-cov.cpp
+++ b/tools/llvm-cov/llvm-cov.cpp
@@ -40,7 +40,6 @@
 
   cl::ParseCommandLineOptions(argc, argv, "llvm cov\n");
 
-
   GCOVFile GF;
   if (InputGCNO.empty())
     errs() << " " << argv[0] << ": No gcov input file!\n";