[Bug-gnulib] for p; do ... solaris syntax error

[Karl Berry]

I just found that
  for p; do ...
gets a syntax error with Solaris 2.7 /bin/sh:
  /tmp/x.sh: syntax error at line 1: `;' unexpected

I am surprised (make that flabbergasted) at this.  Both that such an
obvious bug is there, and that it hasn't been noticed before this (or
maybe it has? It's hard to search for since all the words involved are
English prepositions ...).  In fact, I'm wondering if I'm just going
crazy.  I did try a couple of different machines.

At any rate, assuming the bug is really there, is there a problem with using
  for p in "$@"; do ...
instead?  (This will affect mkinstalldirs and texi2dvi for starters.) Or
  for p in "${1+"$@"}; do ...
would be better for the sake of Digital Unix/Ultrix perhaps?

I want to make my Texinfo release today, so I'm planning to just change
texinfo's local mkinstalldirs and do it, barring advice that this would
be a horrible mistake.

Thanks,
karl