[TASK] Improve description of $TYPO3_CONF_VARS['SYS']['no_pconnect']

Improve the description of $TYPO3_CONF_VARS['SYS']['no_pconnect'],
so that people at least get a keyword, which they can put into
Google, when they don't know, what to set here.

Change-Id: Ifde0587bdc9bf554b5f8497c7aae05347349ba2e
Resolves: #29304
Reviewed-on: http://review.typo3.org/4642
Reviewed-by: Kestutis
Tested-by: Kestutis
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn

t3lib/config_default.php

@@ -104,7 +104,7 @@ $TYPO3_CONF_VARS = array(
 		'binSetup' => '', 						// String (textarea): List of programs (separated by newline or comma). By default programs will be searched in default paths and the special paths defined by 'binPath'. When PHP has openbasedir enabled the programs can not be found and have to be configured here. Example: <code>perl=/usr/bin/perl,unzip=/usr/local/bin/unzip</code>
 		't3lib_cs_convMethod' => '',			// String (values: "iconv", "recode", "mbstring", default is homemade PHP-code). Defines which of these PHP-features to use for various charset conversion functions in t3lib_cs. Will speed up charset conversion radically.
 		't3lib_cs_utils' => '',					// String (values: "iconv", "mbstring", default is homemade PHP-code). Defines which of these PHP-features to use for various charset processing functions in t3lib_cs. Will speed up charset functions radically.
-		'no_pconnect' => TRUE,					// Boolean: If TRUE, "connect" is used instead of "pconnect" when connecting to the database!
+		'no_pconnect' => TRUE,					// Boolean: If TRUE, "connect" is used to connect to the database. If FALSE, a persistent connection using "pconnect" will be established!
 		'multiplyDBfieldSize' => 1,				// Double: 1-5: Amount used to multiply the DB field size when the install tool is evaluating the database size (eg. "2.5"). This is only useful e.g. if your database is ISO-8859-1 encoded but you want to use UTF-8 for your site. For Western European sites using UTF-8 the need should not be for more than twice the normal single-byte size (2) and for Chinese / Asian languages 3 should suffice. NOTICE: It is recommended to change the native database charset instead! (see <a href="http://wiki.typo3.org/index.php/UTF-8_support" target="_blank">TYPO3 wiki: UTF-8 support</a> for more information). NOTICE: This option is deprecated since TYPO3 4.5, and will not be used anymore in 4.7+. Please use proper tools to set your installation to native UTF-8.
 		'setDBinit' => '-1',						// String (textarea): Commands to send to database right after connecting, separated by newline. Ignored by the DBAL extension except for the 'native' type!
 		'dbClientCompress' => FALSE,			// Boolean: if TRUE, data exchange between TYPO3 and database server will be compressed. This may improve performance if (1) database serever is on the different server and (2) network connection speed to database server is 100mbps or less. CPU usage will be higher if this option is used but database operations will be executed faster due to much less (up to 3 times) database network traffic. This option has no effect if MySQL server is localhost.