Who coined the phrase 'lipstick on a pig'?

In 1985, KNBR, an AM radio station carrying the San Francisco Giants' baseball games, had raised $20,000 toward the construction of a new downtown stadium.

The city's Board of Supervisors, reluctant to commit to such a project, asked KNBR if they couldn't use the money to renovate Candlestick Park instead.

On November 16th, 1985, Washington Post ran an article about it, and quoted KNBR radio personality Ron Lyons as saying that the idea of renovating Candlestick Park "would be like putting lipstick on a pig."