1054 - Integer '%s' must be in range %u to %u.

Description
An integer property of a Function was set out of range.
Example
Config:
Unity( 'name' ) { .UnityInputPath = 'Code/' .UnityOutputPath = 'Tmp/' .UnityNumFiles = 99999999 // Too big }
Output:
c:\Test\fbuild.bff(1):(1) FASTBuild Error #1054 - Unity() - Integer 'UnityNumFiles' must be in range 1 to 999. Unity( 'name' ) ^ \--here
Fix:
Unity( 'name' ) { .UnityInputPath = 'Code/' .UnityOutputPath = 'Tmp/' .UnityNumFiles = 10 }