-build-mode:obj overwrites -out: extension

[nico-abram]

Context

Please provide any relevant information about your setup. This is important in case the issue is not reproducible except for under certain conditions.

• Operating System & Odin Version: Windows 10 21H2 and dev-2022-08:3d4698d
• Please paste odin report output:

Where to find more information and get into contact when you encounter a bug:

        Website: https://odin-lang.org
        GitHub:  https://github.com/odin-lang/Odin/issues


Useful information to add to a bug report:

        Odin: dev-2022-08:3d4698d
        OS:   Windows 10 Home Basic (version: 21H2), build 19044.1889
        CPU:  AMD Ryzen 7 4800H with Radeon Graphics
        RAM:  15789 MiB

Expected Behavior

Explicitly setting an output filename when generating an object file should use the given extension

Current Behavior

Running .\odin.exe build a.odin -file -build-mode:obj -out:a.s generates a.obj instead of a.s