add a note explaining this stupid function

src/embed/api.c

@@ -375,9 +375,17 @@ Parrot_api_set_configuration_hash(Parrot_PMC interp_pmc, Parrot_PMC confighash)
     EMBED_API_CALLOUT(interp_pmc, interp);
 }
 
+/*
+This is an evil hack to provide a wrapper around IMCC to catch unhandled
+exceptions without having to assume IMCC is linked in with libparrot. Delete
+this as soon as we don't need it anymore.
+*/
+
 PARROT_API
 Parrot_Int
-Parrot_api_wrap_imcc_hack(Parrot_PMC interp_pmc, const char * sourcefile, int argc, const char **argv, Parrot_PMC* bytecodepmc, int *result, imcc_hack_func_t func)
+Parrot_api_wrap_imcc_hack(Parrot_PMC interp_pmc, const char * sourcefile,
+    int argc, const char **argv, Parrot_PMC* bytecodepmc, int *result,
+    imcc_hack_func_t func)
 {
     EMBED_API_CALLIN(interp_pmc, interp)
     *result = func(interp_pmc, sourcefile, argc, argv, bytecodepmc);