[opt] Change the parameter of OptTable::PrintHelp from Name to Usage and don't append "[options] <inputs>"

Summary:
Before, "[options] <inputs>" is unconditionally appended to the `Name` parameter. It is more flexible to change its semantic to `Usage` and let user customize the usage line.

% llvm-objcopy
...
USAGE: llvm-objcopy <input> [ <output> ] [options] <inputs>

With this patch:

% llvm-objcopy
...
USAGE: llvm-objcopy input [output]

Reviewers: rupprecht, alexshap, jhenderson

Reviewed By: rupprecht

Subscribers: jakehehrlich, mehdi_amini, steven_wu, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D51009

llvm-svn: 344097

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/tools/llvm-mt/llvm-mt.cpp b/llvm/tools/llvm-mt/llvm-mt.cpp
index 1339fd1572e..ea75c012eac 100644
--- a/llvm/tools/llvm-mt/llvm-mt.cpp
+++ b/llvm/tools/llvm-mt/llvm-mt.cpp
@@ -115,7 +115,7 @@ int main(int Argc, const char **Argv) {
   }
 
   if (InputArgs.hasArg(OPT_help)) {
-    T.PrintHelp(outs(), "mt", "Manifest Tool", false);
+    T.PrintHelp(outs(), "llvm-mt [options] file...", "Manifest Tool", false);
     return 0;
   }