Correct multiline string syntax causing unintended whitespace in warning

[jasper-tms]

Previously live_live_queries would cause this warning to print:

WARNING:root:Deprecation: this method is to facilitate beta testing of this feature,             it will likely get removed in future versions.

which appears to accidentally have a block of whitespace in it. I removed it by correcting what looks like an incorrect multiline string syntax. (Since the string is within parentheses, no escape is needed at the end of the first line. Even if an escape were needed, it would need to come after a " that closes the first line's string.)

Now we get the correct

WARNING:root:Deprecation: this method is to facilitate beta testing of this feature, it will likely get removed in future versions.