[BUG] Launch games via Legendary doesn't work

[RuiNtD]

• Describe the bug
  "Launch games via Legendary for online services" doesn't seem to work, as SRM adds an \n after the legendary path. Note that this only seems to apply to an auto-detected legendary.exe and not if it's manually specified.

• Steps to reproduce the behavior

1. Create a Legendary parser
2. Turn on "Launch games via Legendary for online services"
3. Test the parser

• Expected behavior
  SRM sets the shortcut to "C:\<path>\legendary.exe" launch Fortnite. Instead, it's set to:

"C:\<path>\legendary.exe
" launch Fortnite

• Screenshots

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