[Ada] Update gnatstub documentation for the Libadalang-based version

2018-12-11  Bob Duff  <duff@adacore.com>

gcc/ada/

	* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatstub
	documentation for the Libadalang-based version.
	* gnat_ugn.texi: Regenerate.

From-SVN: r266981

gcc/ada/ChangeLog

+2018-12-11  Bob Duff  <duff@adacore.com>
+
+	* doc/gnat_ugn/gnat_utility_programs.rst: Update gnatstub
+	documentation for the Libadalang-based version.
+	* gnat_ugn.texi: Regenerate.
+
 2018-12-11  Ed Schonberg  <schonberg@adacore.com>
 
 	* sem_ch13.adb (Push_Type, Pop_Type): New procedures, used for

gcc/ada/gnat_ugn.texi

@@ -17384,7 +17384,7 @@ normal mode is listed, but no file is actually deleted.
 
 @item @code{--version}
 
-Display Copyright and version, then exit disregarding all other options.
+Display copyright and version, then exit disregarding all other options.
 @end table
 
 @geindex --help (gnatclean)
@@ -17687,7 +17687,7 @@ version of the same source that has been modified.
 
 @item @code{--version}
 
-Display Copyright and version, then exit disregarding all other options.
+Display copyright and version, then exit disregarding all other options.
 @end table
 
 @geindex --help (gnatls)
@@ -18020,7 +18020,7 @@ The following switches are available for @code{gnatxref}:
 
 @item @code{--version}
 
-Display Copyright and version, then exit disregarding all other options.
+Display copyright and version, then exit disregarding all other options.
 @end table
 
 @geindex --help (gnatxref)
@@ -18278,7 +18278,7 @@ The following switches are available:
 
 @item @code{--version}
 
-Display Copyright and version, then exit disregarding all other options.
+Display copyright and version, then exit disregarding all other options.
 @end table
 
 @geindex --help (gnatfind)