Don't Remove First Argument if There is None on webOS

[mariotaku]

Guidelines

1. Rebase before opening a pull request
2. If you are sending several unrelated fixes or features, use a branch and a separate pull request for each
3. If possible try squashing everything in a single commit. This is particularly beneficial in the case of feature merges since it allows easy bisecting when a problem arises

Description

For webOS Build, if one executes retroarch without any argument, crash will occur.

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