inetcomm: Charset name comparison should be case insensitive.

dlls/inetcomm/mimeintl.c

@@ -250,7 +250,7 @@ static HRESULT WINAPI MimeInternat_FindCharset(IMimeInternational *iface, LPCSTR
 
     LIST_FOR_EACH_ENTRY(charset, &This->charsets, charset_entry, entry)
     {
-        if(!strcmp(charset->cs_info.szName, pszCharset))
+        if(!lstrcmpiA(charset->cs_info.szName, pszCharset))
         {
             *phCharset = charset->cs_info.hCharset;
             hr = S_OK;

dlls/inetcomm/tests/mimeintl.c

@@ -149,6 +149,9 @@ static void test_charset(void)
     hr = IMimeInternational_FindCharset(internat, "windows-1252", &hcs);
     ok(hr == S_OK, "got %08x\n", hr);
     ok(hcs_windows_1252 == hcs, "got different hcharsets for the same name\n");
+    hr = IMimeInternational_FindCharset(internat, "WiNdoWs-1252", &hcs);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(hcs_windows_1252 == hcs, "got different hcharsets for the same name\n");
 
     hr = IMimeInternational_FindCharset(internat, "windows-1251", &hcs_windows_1251);
     ok(hr == S_OK, "got %08x\n", hr);