fixed tiny doc typo

git-svn-id: https://svn.modelica.org/projects/Modelica/trunk@6683 7ce873d0-865f-4ce7-a662-4bb36ea78beb
#1144 fixed (Assertions of MultiBody.Examples.Loops.Utilities.GasForce2):
Introduced significant digits with 14 digits.

git-svn-id: https://svn.modelica.org/projects/Modelica/trunk@6684 7ce873d0-865f-4ce7-a662-4bb36ea78beb