Yeah, the plugin description should not be altered, specifically what's wrapped in "|" besides being an aeshetical design, this also helps the plugin identify itself, if you plan on translating the plugin, I'd highly recommend not altering everything inside of "|", as this is core to the plugin running, if any of this is altered, the plugin will cease to function. If you're still insistant on changing this part of the plugin, please see line 452 of the plugin,and modify the text there to match what you put in the plugins description.
Edit: please note this is a regular expression statement, so if you're not familiar, I'd recommend just leaving whats inside the marks alone :x my apologies for the inconvenience, the only thing that it's checking for, is the plugins name, and the plugins version. Everything else can be altered without any issues.