removed leading whitespace (PowerShell#4991)

Add an optional extended description…

Author: SteveL-MSFT

src/System.Management.Automation/resources/DiscoveryExceptions.resx

@@ -137,7 +137,7 @@
   </data>
   <data name="CommandNotFoundException" xml:space="preserve">
     <value>The term '{0}' is not recognized as the name of a cmdlet, function, script file, or operable program.
-      Check the spelling of the name, or if a path was included, verify that the path is correct and try again.</value>
+Check the spelling of the name, or if a path was included, verify that the path is correct and try again.</value>
   </data>
   <data name="CmdletNotFoundException" xml:space="preserve">
     <value>Argument '{0}' is not recognized as a cmdlet: {1}</value>