[docs][llvm-nm] Fix documentation regarding llvm-nm reading stdin
llvm-nm reads a.out NOT stdin when no input file is specified. This
patch fixes the doc accordingly, and rephrases the surrounding sentence
slightly.
Reviewed by: grimar
Differential Revision: https://reviews.llvm.org/D63135
llvm-svn: 363065
diff --git a/llvm/docs/CommandGuide/llvm-nm.rst b/llvm/docs/CommandGuide/llvm-nm.rst
index 2a2f827..f679a04 100644
--- a/llvm/docs/CommandGuide/llvm-nm.rst
+++ b/llvm/docs/CommandGuide/llvm-nm.rst
@@ -12,8 +12,9 @@
The :program:`llvm-nm` utility lists the names of symbols from the LLVM bitcode
files, object files, or :program:`ar` archives containing them, named on the
command line. Each symbol is listed along with some simple information about
-its provenance. If no file name is specified, or *-* is used as a file name,
-:program:`llvm-nm` will process a file on its standard input stream.
+its provenance. If no filename is specified, *a.out* is used as the input.
+If *-* is used as a filename, :program:`llvm-nm` will read a file from its
+standard input stream.
:program:`llvm-nm`'s default output format is the traditional BSD :program:`nm`
output format. Each such output record consists of an (optional) 8-digit