[llvm-profdata] Fix one bad format in llvm-profdata CommandGuide doc. NFC

llvm-svn: 358643
diff --git a/llvm/docs/CommandGuide/llvm-profdata.rst b/llvm/docs/CommandGuide/llvm-profdata.rst
index 78bd4c1..2f59bff 100644
--- a/llvm/docs/CommandGuide/llvm-profdata.rst
+++ b/llvm/docs/CommandGuide/llvm-profdata.rst
@@ -227,6 +227,7 @@
  value.
 
 .. option:: -showcs
+
  Only show context sensitive profile counts. The default is to filter all
  context sensitive profile counts.