Replace tabs with spaces

src/parse.y

@@ -4751,7 +4751,7 @@ parser_yylex(parser_state *p)
     case '&':     /* $&: last match */
     case '`':     /* $`: string before last match */
     case '\'':    /* $': string after last match */
-    case '+':		/* $+: string matches last paren. */
+    case '+':     /* $+: string matches last pattern */
       if (last_state == EXPR_FNAME) {
         tokadd(p, '$');
         tokadd(p, c);
@@ -4930,9 +4930,7 @@ parser_yylex(parser_state *p)
         }
       }
 
-      if (IS_BEG() ||
-	  p->lstate == EXPR_DOT ||
-	  IS_ARG()) {
+      if (IS_BEG() || p->lstate == EXPR_DOT || IS_ARG()) {
         if (cmd_state) {
           p->lstate = EXPR_CMDARG;
         }