docs: reflect new gpconfig functionality
Document that when running gpconfig, the value is escaped for users
before being written to the postgresql.conf files.
<pd>The value to use for the configuration parameter you specified with the
<codeph>-c</codeph> option. By default, this value is applied to all segments, their
mirrors, the master, and the standby master.</pd>
- <pd>Parameter values that are not simple identifiers or numbers must be enclosed in single
- quotes (<codeph>'</codeph>). For example, values that contain spaces or special
- characters must be enclosed in single quotes. To embed a single quote in a parameter
- value, enter either two single quotes or backslash and quote (<codeph>\'</codeph>).</pd>
- <pd>The utility encloses the value in single quotes when adding the setting to the
+ <pd>The utility correctly quotes the value when adding the setting to the
<codeph>postgresql.conf</codeph> files.</pd>
</plentry>
<plentry>
