[Ada] Fix punctuation in documentation of warnings for aliasing actuals

gcc/ada/

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
	(-gnatw.I): Remove double period at the end of sentence.
	* gnat_ugn.texi: Regenerate.
diff --git a/gcc/ada/doc/gnat_ugn/building_executable_programs_with_gnat.rst b/gcc/ada/doc/gnat_ugn/building_executable_programs_with_gnat.rst
index 63b3f17..446e7cf 100644
--- a/gcc/ada/doc/gnat_ugn/building_executable_programs_with_gnat.rst
+++ b/gcc/ada/doc/gnat_ugn/building_executable_programs_with_gnat.rst
@@ -3253,7 +3253,7 @@
 :switch:`-gnatw.I`
   *Disable warnings on overlapping actuals.*
 
-  This switch disables warnings on overlapping actuals in a call..
+  This switch disables warnings on overlapping actuals in a call.
 
 
 .. index:: -gnatwj  (gcc)
diff --git a/gcc/ada/gnat_ugn.texi b/gcc/ada/gnat_ugn.texi
index 78814c3..f7773c3 100644
--- a/gcc/ada/gnat_ugn.texi
+++ b/gcc/ada/gnat_ugn.texi
@@ -11387,7 +11387,7 @@
 
 @emph{Disable warnings on overlapping actuals.}
 
-This switch disables warnings on overlapping actuals in a call..
+This switch disables warnings on overlapping actuals in a call.
 @end table
 
 @geindex -gnatwj (gcc)