Fixed a typo in the spec for the std_vector_c object.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402644

dlib/stl_checked/std_vector_c_abstract.h

@@ -360,7 +360,7 @@ namespace dlib
         );
         /*!
             requires
-                - begin() <= position && position < end()
+                - begin() <= position && position <= end()
                   (i.e. position references an element in this vector object)
             ensures
                 - #size() == size() + 1
@@ -376,7 +376,7 @@ namespace dlib
         );
         /*!
             requires
-                - begin() <= position && position < end()
+                - begin() <= position && position <= end()
                   (i.e. position references an element in this vector object)
             ensures
                 - #size() == size() + n
@@ -391,7 +391,7 @@ namespace dlib
         );
         /*!
             requires
-                - begin() <= position && position < end()
+                - begin() <= position && position <= end()
                   (i.e. position references an element in this vector object)
                 - first and last are not iterators into *this
             ensures