[PATCH] Fix description of Wendif-labels (PR documentation/78732)

[David Malcolm]

As noted in the PR, c.opt's description of -Wendif-labels erroneously
refers to #elif, rather than #else.

warn_endif_labels is used by:
  libcpp/directives.c: do_else
  libcpp/directives.c: do_endif
in which they use it to guard calls to check_eol_endif_labels.

It's not used by do_elif.

doc/cppwarnopts.texi gets this right:

> Do not warn whenever an @code{#else} or an @code{#endif} are followed by text.
> This sometimes happens in older programs with code of the form

This patch fixes the description in c.opt.

Successfully bootstrapped&regrtested on x86_64-pc-linux-gnu.

Committed to trunk as obvious (r246616).

gcc/c-family/ChangeLog:
        PR documentation/78732
        * c.opt (Wendif-labels): Fix description to refer to
        #else rather than #elif.
---
 gcc/c-family/c.opt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index 78fea61..13b930d 100644
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -486,7 +486,7 @@ Warn about an empty body in an if or else statement.
 
 Wendif-labels
 C ObjC C++ ObjC++ CPP(warn_endif_labels) CppReason(CPP_W_ENDIF_LABELS) 
Var(cpp_warn_endif_labels) Init(1) Warning LangEnabledBy(C ObjC C++ 
ObjC++,Wpedantic)
-Warn about stray tokens after #elif and #endif.
+Warn about stray tokens after #else and #endif.
 
 Wenum-compare
 C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning LangEnabledBy(C 
ObjC,Wall || Wc++-compat)
-- 
1.8.5.3