Parameter is not bool

[Stefan A. Haubenthal]

> vc +kick13  -Ivbcc:PosixLib/include -DPROGVERSION="1.13" -c -o main.o main.c
>          if( !open_outstream( true, in_statsp ) )
error 39 in line 702 of "main.c": invalid types for assignment
1 error found!