[gnome-calculator] Clarify license on mpfr.vapi

[Michael Catanzaro <mcatanzaro src gnome org>]

commit ed97f613d0d8482e31e5924bc833a4a835738ff9
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sat Feb 13 15:44:54 2016 -0600

    Clarify license on mpfr.vapi
    
    As pointed out by Phillip Wood's complex numbers work....
    
    There is no possible way to use this code under the GPLv2, so it's
    really confusing to have a GPLv2 license header on it. Take advantage of
    the "or any later version" clause to increment this.

 lib/mpfr.vapi |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/mpfr.vapi b/lib/mpfr.vapi
index 8c08cab..5baa4de 100644
--- a/lib/mpfr.vapi
+++ b/lib/mpfr.vapi
@@ -3,7 +3,7 @@
  *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
- * Foundation, either version 2 of the License, or (at your option) any later
+ * Foundation, either version 3 of the License, or (at your option) any later
  * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
  * license.
  */