Fix ArgumentCompleter attribute example (#4802)

* Fix ArgumentCompleter attribute example

Add missing $parameterName argument

* Remove locale header

about_Functions_Advanced_Parameters.md contained explicit locale header, which is autogenerated by Docs

* Fixes #4648 - ternary operator (#4800)

* Fixes #4648 - ternary operator

* fix line wrap

* restore locale

* applying change to v5.0/5.1/7

Author: marcinsmialek

reference/5.0/Microsoft.PowerShell.Core/About/about_Functions_Advanced_Parameters.md

@@ -753,7 +753,7 @@ The syntax is as follows:
 Param(
     [Parameter(Mandatory)]
     [ArgumentCompleter({
-        param ($commandName, $wordToComplete, $commandAst, $fakeBoundParameter)
+        param ($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameter)
         # Perform calculation of tab completed values here.
     })]
 )

reference/5.1/Microsoft.PowerShell.Core/About/about_Functions_Advanced_Parameters.md

@@ -788,7 +788,7 @@ The syntax is as follows:
 Param(
     [Parameter(Mandatory)]
     [ArgumentCompleter({
-        param ($commandName, $wordToComplete, $commandAst, $fakeBoundParameter)
+        param ($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameter)
         # Perform calculation of tab completed values here.
     })]
 )

reference/6/Microsoft.PowerShell.Core/About/about_Functions_Advanced_Parameters.md

@@ -834,7 +834,7 @@ The syntax is as follows:
 Param(
     [Parameter(Mandatory)]
     [ArgumentCompleter({
-        param ($commandName, $wordToComplete, $commandAst, $fakeBoundParameter)
+        param ($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameter)
         # Perform calculation of tab completed values here.
     })]
 )

reference/7/Microsoft.PowerShell.Core/About/about_Functions_Advanced_Parameters.md

@@ -834,7 +834,7 @@ The syntax is as follows:
 Param(
     [Parameter(Mandatory)]
     [ArgumentCompleter({
-        param ($commandName, $wordToComplete, $commandAst, $fakeBoundParameter)
+        param ($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameter)
         # Perform calculation of tab completed values here.
     })]
 )