Comment 7 for bug 699264

rebase against GIT

* error.c lacked two lines
  removed in previous commit (with useless signal switch)
* strflags.c had a bug (extra comma before the flags list)

minor changes:

* file.c: some formatting corrections
* doc/pcb.texi: fix a typo and remove Ineiev copyright as hardly
  significant

All previous patches are deleted as more buggy.