don't overwrite $errstr if it was already set (PEAR Bug #14448)
don't overwrite $errstr if it was already set (PEAR Bug #14448)


git-svn-id: 0ec501a7da523220bd6ea4a1ca9f780eb453ca24@270243 c90b9560-bf6c-de11-be94-00142212c4b1

pear/Net_Socket