Here's some changes I made last night to psql's common.c (as found in

7.3.2).  It removes some code duplication and #ifdeffing, and some
unstructured ugliness such as tacky breaks and an unneeded continue.
Breaks up a large function into smaller functions and reduces required
nesting levels, and kills a variable or two.

Jeroen T. Vermeulen

Author: bmomjian