Quiesce warnings -Wdangling-else

Thanks to jilles for some reviews and tips.

contrib/groff/src/roff/troff/input.cpp

@@ -2789,18 +2789,19 @@ void process_input_stack()
     case token::TOKEN_TRANSPARENT:
       {
 	if (bol) {
-	  if (possibly_handle_first_page_transition())
+	  if (possibly_handle_first_page_transition()) {
 	    ;
-	  else {
+	  } else {
 	    int cc;
 	    do {
 	      node *n;
 	      cc = get_copy(&n);
-	      if (cc != EOF)
+	      if (cc != EOF) {
 		if (cc != '\0')
 		  curdiv->transparent_output(transparent_translate(cc));
 		else
 		  curdiv->transparent_output(n);
+	      }
 	    } while (cc != '\n' && cc != EOF);
 	    if (cc == EOF)
 	      curdiv->transparent_output('\n');
@@ -2811,9 +2812,9 @@ void process_input_stack()
     case token::TOKEN_NEWLINE:
       {
 	if (bol && !old_have_input
-	    && !curenv->get_prev_line_interrupted())
+	    && !curenv->get_prev_line_interrupted()) {
 	  trapping_blank_line();
-	else {
+	} else {
 	  curenv->newline();
 	  bol = 1;
 	}

contrib/groff/src/roff/troff/mtsm.cpp

@@ -482,21 +482,24 @@ void mtsm::flush(FILE *fp, statem *s, string tag_list)
 void statem::display_state()
 {
   fprintf(stderr, " <state ");
-  if (bool_values[MTSM_BR].is_known)
+  if (bool_values[MTSM_BR].is_known) {
     if (bool_values[MTSM_BR].value)
       fprintf(stderr, "[br]");
     else
       fprintf(stderr, "[!br]");
-  if (bool_values[MTSM_EOL].is_known)
+  }
+  if (bool_values[MTSM_EOL].is_known) {
     if (bool_values[MTSM_EOL].value)
       fprintf(stderr, "[eol]");
     else
       fprintf(stderr, "[!eol]");
-  if (int_values[MTSM_SP].is_known)
+  }
+  if (int_values[MTSM_SP].is_known) {
     if (int_values[MTSM_SP].value)
       fprintf(stderr, "[sp %d]", int_values[MTSM_SP].value);
     else
       fprintf(stderr, "[!sp]");
+  }
   fprintf(stderr, ">");
   fflush(stderr);
 }

contrib/groff/src/roff/troff/node.cpp

@@ -4600,14 +4600,14 @@ void hline_node::tprint(troff_output_file *out)
   }
   else {
     hunits rem = x - w*i;
-    if (rem > H0)
+    if (rem > H0) {
       if (n->overlaps_horizontally()) {
 	if (out->is_on())
 	  n->tprint(out);
 	out->right(rem - w);
-      }
+      } else
-      else
 	out->right(rem);
+    }
     while (--i >= 0)
       if (out->is_on())
 	n->tprint(out);