[llvm-nm] Restore the previous behaviour (pre r262525).

It broke some buildbots.

Pointy-hat to:  me

llvm-svn: 262529

llvm/tools/llvm-nm/llvm-nm.cpp

@@ -159,8 +159,7 @@ cl::alias JustSymbolNames("j", cl::desc("Alias for --just-symbol-name"),
 // line.
 cl::list<std::string> SegSect("s", cl::Positional, cl::ZeroOrMore,
                               cl::desc("Dump only symbols from this segment "
-                                       "and section name, Mach-O only"),
-                              cl::Grouping);
+                                       "and section name, Mach-O only"));
 
 cl::opt<bool> FormatMachOasHex("x", cl::desc("Print symbol entry in hex, "
                                              "Mach-O only"), cl::Grouping);