Description:
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When an undefined exception with a callstack is printed in browser, it would be handy to use nl2br() for output to make the callstack more readable.



Expected result:
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Fatal error: Uncaught Exception: The my exception in test.php:36
Stack trace:
#0 test.php(30): DemoClass::third(Array)
#1 test.php(24): DemoClass->second(true, false)
#2 test.php(44): DemoClass->first(10, 'any string')
#3 test.php(52): demo(10, 'any string')
#4 {main} thrown in test.php on line 36

Actual result:
--------------
Current output in HTML:
Fatal error: Uncaught Exception: The my exception in test.php:36 Stack trace: #0 test.php(30): DemoClass::third(Array) #1 test.php(24): DemoClass->second(true, false) #2 test.php(44): DemoClass->first(10, 'any string') #3 test.php(52): demo(10, 'any string') #4 {main} thrown in test.php on line 36