patch 8.2.0025: repeated word in comment

Problem:    Repeated word in comment.
Solution:   Remove one. (Rene Nyffenegger, closes #5384)
diff --git a/src/structs.h b/src/structs.h
index 71b5c61..a543d3b 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -68,7 +68,7 @@
 #endif
 
 /*
- * SCript ConteXt (SCTX): identifies a script script line.
+ * SCript ConteXt (SCTX): identifies a script line.
  * When sourcing a script "sc_lnum" is zero, "sourcing_lnum" is the current
  * line number. When executing a user function "sc_lnum" is the line where the
  * function was defined, "sourcing_lnum" is the line number inside the