System log cannot display complete error messages

The following error (at least) gets truncated in the system log, though the aggressive pop-up balloon from the status bar does show the full content, as does copy/pasting it the message, and so does the log file:

Could not download digital signature for update check (A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (http://update.apexdc...ersion.xml.sign))

It gets truncated at:
Could not download digital signature for update check (A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (http://update.apexd