dbghelp: Don't use strcasecmp.

dlls/dbghelp/msc.c

@@ -2684,7 +2684,7 @@ static void pdb_process_symbol_imports(const struct process* pcs,
         {
             ptr = (const char*)imp + sizeof(*imp) + strlen(imp->filename);
             if (i >= CV_MAX_MODULES) FIXME("Out of bounds!!!\n");
-            if (!strcasecmp(pdb_lookup->filename, imp->filename))
+            if (!_strnicmp(pdb_lookup->filename, imp->filename, -1))
             {
                 if (module_index != -1) FIXME("Twice the entry\n");
                 else module_index = i;

dlls/dbghelp/pe_module.c

@@ -127,7 +127,7 @@ BOOL pe_find_section(struct image_file_map* fmap, const char* name,
             sectname = memcpy(tmp, sectname, IMAGE_SIZEOF_SHORT_NAME);
             tmp[IMAGE_SIZEOF_SHORT_NAME] = '\0';
         }
-        if (!strcasecmp(sectname, name))
+        if (!_strnicmp(sectname, name, -1))
         {
             ism->fmap = fmap;
             ism->sidx = i;