[llvm] update llvm-dis header with available options (PR #108073)

[Xiaofeng Tian via llvm-commits]

================
@@ -12,7 +12,12 @@
 //                            to the x.ll file.
 //  Options:
 //      --help   - Output information about command line switches
-//
+//      -o <filename>                  - Override output filename
+//      -f                             - Enable binary output on terminals
+//      --disable-output               - Don't output the .ll file
+//      --show-annotations             - Add informational comments to the .ll file
+//      --materialize-metadata         - Load module without materializing metadata, then materialize only the metadata
+// 
----------------
txff99 wrote:

got it. I just added all the options in `llvm-dis -help` 

https://github.com/llvm/llvm-project/pull/108073