fixps doesn't use configured AWK

[Ryan Lovett]

fixps uses awk, not the detected gawk on my system. Without gawk, a2ps will
barf with

  awk: syntax error near line 2
  awk: illegal statement near line 2

and generate bad PostScript.

  GNU a2ps 4.12
  SunOS 5.7 sun4u sparc

Thanks,
Ryan