[CommandLine] Allow grouping options which can have values.

This patch allows all forms of values for options to be used at the end
of a group. With the fix, it is possible to follow the way GNU binutils
tools handle grouping options better. For example, the -j option can be
used with objdump in any of the following ways:

$ objdump -d -j .text a.o
$ objdump -d -j.text a.o
$ objdump -dj .text a.o
$ objdump -dj.text a.o

Differential Revision: https://reviews.llvm.org/D58711

llvm-svn: 355185

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/tools/llvm-readobj/llvm-readobj.cpp b/llvm/tools/llvm-readobj/llvm-readobj.cpp
index 14f8daea66a..161a290a519 100644
--- a/llvm/tools/llvm-readobj/llvm-readobj.cpp
+++ b/llvm/tools/llvm-readobj/llvm-readobj.cpp
@@ -688,7 +688,7 @@ static void registerReadelfAliases() {
     StringRef ArgName = OptEntry.getKey();
     cl::Option *Option = OptEntry.getValue();
     if (ArgName.size() == 1)
-      Option->setFormattingFlag(cl::Grouping);
+      apply(Option, cl::Grouping);
   }
 }