Merge pull request #9016 from agocke/fix-public-sign-bugs

Add public sign to help for csc & vbc

src/Compilers/CSharp/Portable/CSharpResources.resx

@@ -4424,6 +4424,8 @@ To remove the warning, you can use /reference instead (set the Embed Interop Typ
                         - SECURITY -
  /delaysign[+|-]               Delay-sign the assembly using only the public 
                                portion of the strong name key
+ /publicsign[+|-]              Public-sign the assembly using only the public
+                               portion of the strong name key
  /keyfile:<file>               Specify a strong name key file
  /keycontainer:<string>        Specify a strong name key container
  /highentropyva[+|-]           Enable high-entropy ASLR

src/Compilers/VisualBasic/Portable/VBResources.resx

@@ -5107,6 +5107,8 @@
                                   source files.
 /delaysign[+|-]                   Delay-sign the assembly using only the public
                                   portion of the strong name key.
+/publicsign[+|-]                  Public-sign the assembly using only the public
+                                  portion of the strong name key.
 /errorreport:<string>             Specifies how to handle internal compiler
                                   errors; must be prompt, send, none, or queue
                                   (default).