[docs] Update usage directive for llvm-cov report -show-functions
llvm-svn: 337062
diff --git a/llvm/docs/CommandGuide/llvm-cov.rst b/llvm/docs/CommandGuide/llvm-cov.rst
index 8e9c78c..6f1b6e4 100644
--- a/llvm/docs/CommandGuide/llvm-cov.rst
+++ b/llvm/docs/CommandGuide/llvm-cov.rst
@@ -327,8 +327,8 @@
filtered to only show the coverage for the files listed in *SOURCES*.
If no source files are provided, a summary line is printed for each file in the
-coverage data. If any files are provided, summaries are shown for each function
-in the listed files instead.
+coverage data. If any files are provided, summaries can be shown for each
+function in the listed files if the ``-show-functions`` option is enabled.
For information on compiling programs for coverage and generating profile data,
see :ref:`llvm-cov-show`.