formats/format_g729: Fix typo in comment

There was a typo in a comment.  This commit is to fix the typo.

ASTERISK-27060 #close

Change-Id: Ic2699f8dbeaacd58ccb6ec3203e853e1babe3235

formats/format_g729.c

@@ -19,7 +19,7 @@
 /*! \file
  *
  * \brief Save to raw, headerless G729 data.
- * \note This is not an encoder/decoder. The codec fo g729 is only
+ * \note This is not an encoder/decoder. The codec for g729 is only
  * available with a commercial license from Digium, due to patent
  * restrictions. Check http://www.digium.com for information.
  * \arg Extensions: g729