tiny main/utils.c fixes

[Alfred M. Szmidt]

Tiny patch; some older or newer compilers (I forgot which) will
complain if there is no compound statment after a label.

2024-05-29  Alfred M. Szmidt  <a...@gnu.org>

        * tp/Texinfo/XS/main/utils.c (clear_option, free_option)
        (initialize_option): Add a no-op compund statment to mitigate
        errors from GCC.



diff --git a/tp/Texinfo/XS/main/utils.c b/tp/Texinfo/XS/main/utils.c
index 6d209b699c..b90549afab 100644
--- a/tp/Texinfo/XS/main/utils.c
+++ b/tp/Texinfo/XS/main/utils.c
@@ -1610,6 +1610,7 @@ clear_option (OPTION *option)
         option->integer = -1;
 
       default:
+       break;
     }
 }
 
@@ -1641,6 +1642,7 @@ free_option (OPTION *option)
 
       case GOT_integer:
       default:
+       break;
     }
 }
 
@@ -1676,6 +1678,7 @@ initialize_option (OPTION *option, enum 
global_option_type type)
         break;
 
       default:
+       break;
     }
 }