Log Message:
gnumeric: update to 1.12.38.

Gnumeric 1.12.38

Morten:
	* Avoid large stack use here and there.
	* Test suite improvements.
	* Improve sylk writer.  Don't ask.
	* Teach ssdiff about column/row sizes.
	* Teach ssdiff about defined names.
	* Fix a few ssdiff crashes.
	* Fix crash on text import.

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Gnumeric 1.12.37

Morten:
	* Test suite improvements.
	* Improve format guessing for newly entered formulas.
	* Improve PERMUTATIONA for unusual arguments.  [#790742]
	* Extend range of NT_PI.
	* Improve xlsx export of cell comments.  [#790756]
	* Plug leaks.
	* Fix potential crash on exit.
	* Speed-up number theory functions.
	* Fix combo object icon.
	* Code cleanups for main binary.
	* Fix potential crash in gtk scroll bar bug workaround.
	* Avoid large stack use here and there.