doc: grammar fix for -Wduplicate-decl-specifier

gcc/ChangeLog:

	* doc/invoke.texi (-Wduplicate-decl-specifier): Say 'a duplicate'.

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 19ee836b090a5cfb7816acf56d9b81975c5b92e6..6751ff53381c5eb76bfa905b1bb74cacee9ea6bb 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -7191,7 +7191,7 @@ because the floating-point literal is a @code{double}.
 @opindex Wduplicate-decl-specifier
 @opindex Wno-duplicate-decl-specifier
 @item -Wduplicate-decl-specifier @r{(C and Objective-C only)}
-Warn if a declaration has duplicate @code{const}, @code{volatile},
+Warn if a declaration has a duplicate @code{const}, @code{volatile},
 @code{restrict} or @code{_Atomic} specifier.  This warning is enabled by
 @option{-Wall}.