Remove extraneous dot from ‘Missing right brace...’

$ ./perl -Ilib -e '/\N{/'
Missing right brace on \N{} or unescaped left brace after \N. at -e line 1, within pattern
Execution of -e aborted due to compilation errors.

That dot before ‘at -e’ is confusing.

1 files changed, 1 insertions, 1 deletions

diff --git a/toke.c b/toke.c
index efb6533ed8..180059e70b 100644
--- a/toke.c
+++ b/toke.c
@@ -3567,7 +3567,7 @@ S_scan_const(pTHX_ char *start)
 		    if (! PL_lex_inpat) {
 			yyerror("Missing right brace on \\N{}");
 		    } else {
-			yyerror("Missing right brace on \\N{} or unescaped left brace after \\N.");
+			yyerror("Missing right brace on \\N{} or unescaped left brace after \\N");
 		    }
 		    continue;
 		}