msvcrt: Parse I, I32, and I64 integer size flags in printf.

dlls/msvcrt/tests/printf.c

@@ -56,6 +56,21 @@ static void test_sprintf( void )
     ok(!strcmp(buffer, "I"), "Problem with \"I\" interpretation\n");
     ok( r==1, "return count wrong\n");
 
+    format = "%I0d";
+    r = sprintf(buffer,format,1);
+    ok(!strcmp(buffer,"I0d"),"I0d failed\n");
+    ok( r==3, "return count wrong\n");
+
+    format = "%I32d";
+    r = sprintf(buffer,format,1);
+    ok(!strcmp(buffer,"1"),"I32d failed\n");
+    ok( r==1, "return count wrong\n");
+
+    format = "%I64D";
+    r = sprintf(buffer,format,(LONGLONG)-1);
+    ok(!strcmp(buffer,"D"),"I64D failed: %s\n",buffer);
+    ok( r==1, "return count wrong\n");
+
     format = "% d";
     r = sprintf(buffer,format,1);
     ok(!strcmp(buffer, " 1"),"Problem with sign place-holder: '%s'\n",buffer);

dlls/msvcrt/wcs.c

@@ -495,6 +495,20 @@ static int pf_vsnprintf( pf_output *out, const WCHAR *format, va_list valist )
                     flags.IntegerLength = *p;
                 p++;
             }
+            else if( *p == 'I' )
+            {
+                if( *(p+1) == '6' && *(p+2) == '4' )
+                {
+                    flags.IntegerDouble++;
+                    p += 3;
+                }
+                else if( *(p+1) == '3' && *(p+2) == '2' )
+                    p += 3;
+                else if( isdigit(*(p+1)) || *(p+1) == 0 )
+                    break;
+                else
+                    p++;
+            }
             else if( *p == 'w' )
                 flags.WideString = *p++;
             else if( *p == 'F' )