Percona Toolkit Installation Error
I got this same error on an Amazon Linux box (AWS EC2). Here's what I did to get Percona toolkit installed.

# Installs Percona's Perl deps...
yum install perl-Time-HiRes
yum install perl-DBD-MySQL
yum install perl-IO-Socket-SSL     # I actually didn't need this one,
                                   # but based on your error you probably will.

# Install Percona toolkit
rpm -Uhv http://www.percona.com/redir/downloads/percona-toolkit/LATEST/RPM/percona-toolkit-2.2.7-1.noarch.rpm


I'd suggest getting the URL for the Percona toolkit RPM from their website under the "Download Latest" link. (Latest for me at the time of this post was 2.2.7.) The website offers RPM and deb formats; just choose RPM, and then use the link it shows.

I know this doesn't address the OP's problem as described, but it does address his root problem (can't get Percona toolkit installed). I agree with Peter's answer in that a package manager like yum or apt should be used... if for no other reason than handling nasty dependency hell, but I don't know Percona's yum or apt repo... or if they even still have one.

Edit: Also, those are just the Percona toolkit dependencies that I had missing on my box. You may have more or less. Another EC2 instance of mine already had all of the Perl dependencies installed, so all I needed to do was run the rpm command. A Percona repo sure would be great to have!