commands/input/map_from_region: don't treat 0x prefix as hex identifier

When using the `map_from_region` for pen tables, we will usually make
the available area as big as possible while maintaining the proportions
with the screen.

As most of the tablets uses a 16:10 ratios while the most popular screen
ratios is still 16:9, the argument for most people should be `0x0 1x0.9`
to have the maximum effective area.

However, the argument above won't work because the current code will
treat `0x...` as a hexadecimal number, instead of setting both `x` and
`y` to `0`.

This fix allows the use of the following syntax:

```
input type:tablet_tool {
	map_from_region 0x0 1x0.9
}
```

0 files changed, 0 insertions, 0 deletions