updated for version 7.3.925
Problem:    Typos in source files.
Solution:   Fix the typos. (Ken Takata)
diff --git a/src/os_amiga.c b/src/os_amiga.c
index 0b63ea1..e5c7661 100644
--- a/src/os_amiga.c
+++ b/src/os_amiga.c
@@ -118,7 +118,7 @@
 }
 
 /*
- * mch_inchar(): low level input funcion.
+ * mch_inchar(): low level input function.
  * Get a characters from the keyboard.
  * If time == 0 do not wait for characters.
  * If time == n wait a short time for characters.