patch 8.2.4402: missing parenthesis may cause unexpected problems
Problem: Missing parenthesis may cause unexpected problems.
Solution: Add more parenthesis is macros. (closes #9788)
diff --git a/src/spell.c b/src/spell.c
index 86f5750..81ba049 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -67,7 +67,7 @@
#define REGION_ALL 0xff // word valid in all regions
// Result values. Lower number is accepted over higher one.
-#define SP_BANNED -1
+#define SP_BANNED (-1)
#define SP_OK 0
#define SP_RARE 1
#define SP_LOCAL 2