[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/lib/ToolDrivers/llvm-lib/LibDriver.cpp b/llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
index d636dca7a2c..64f4fe423f2 100644
--- a/llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
+++ b/llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
@@ -123,7 +123,7 @@ int llvm::libDriverMain(ArrayRef<const char *> ArgsArr) {
 
   // Handle /help
   if (Args.hasArg(OPT_help)) {
-    Table.PrintHelp(outs(), ArgsArr[0], "LLVM Lib");
+    Table.PrintHelp(outs(), "llvm-lib [options] file...", "LLVM Lib");
     return 0;
   }