[gnumeric] Typo

[Morten Welinder <mortenw src gnome org>]

commit 52ee302768c678df7fed3a2de12fc009500acad4
Author: Morten Welinder <terra gnome org>
Date:   Thu Nov 23 13:47:41 2017 -0500

    Typo

 plugins/fn-numtheory/numtheory.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/fn-numtheory/numtheory.c b/plugins/fn-numtheory/numtheory.c
index 6498e85..ebd1f5d 100644
--- a/plugins/fn-numtheory/numtheory.c
+++ b/plugins/fn-numtheory/numtheory.c
@@ -114,7 +114,7 @@ ithprime (int i, guint64 *res)
 }
 
 /*
- * A function useful for computing multiplicative arithmethic functions.
+ * A function useful for computing multiplicative arithmetic functions.
  * Returns TRUE on error.
  */
 static gboolean