Aseembly output truncates without error (commit cf72284)

[jbruchon]

Commit cf72284 causes assembler output to be truncated without an error in some cases. Testing against a previously working ELKS tree shows elkscmd/ktcp/vjhc.c fails when bcc calls as86 because the assembler output is truncated with no errors indicated; I produced a good vjhc.s of size 205992 and a bad vjhc.s with size 23192; the last line of the good file says ! 0 errors detected while the bad file simply stops in the middle of the code output.

[mfld-fr]

Sorry for the mixing of the issues, latest commit actually related to mfld-fr#10 and mfld-fr#11, not this one.