Fix PHP warning: Non-static method PEAR::setErrorHandling() should not be called statically (#1490343)

CHANGELOG

@@ -4,6 +4,7 @@ CHANGELOG Roundcube Webmail
 - Fix handling of %-encoded entities in mailto: URLs (#1490346)
 - Fix zipped messages downloads after selecting all messages in a folder (#1490339)
 - Fix vpopmaild driver of password plugin
+- Fix PHP warning: Non-static method PEAR::setErrorHandling() should not be called statically (#1490343)
 
 RELEASE 1.1.1
 -------------

program/lib/Roundcube/bootstrap.php

@@ -99,7 +99,7 @@ if (!preg_match($regexp, $path)) {
 spl_autoload_register('rcube_autoload');
 
 // set PEAR error handling (will also load the PEAR main class)
-PEAR::setErrorHandling(PEAR_ERROR_CALLBACK, 'rcube_pear_error');
+@PEAR::setErrorHandling(PEAR_ERROR_CALLBACK, 'rcube_pear_error');