Revision history for Math-ScientificNotation-Util
0.003   2016-06-17 (PERLANCAR)
	- [Bugfix] Missed another regex mistake which allowed 1.e2 and
	  1.0e2 didn't allow 1e2.
0.002   2016-06-17 (PERLANCAR)
	- [Bugfix] Fix regex to recognize decimal number.
	- Check undef argument, print argument in error message.
0.001   2016-06-17 (PERLANCAR)
        - First release.