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-rw-r--r--doc/lua_api.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index fb6bc9df8..de0517d42 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -3623,7 +3623,7 @@ Helper functions
* `math.round(x)`: Returns `x` rounded to the nearest integer.
* At a multiple of 0.5, rounds away from zero.
* `string.split(str, separator, include_empty, max_splits, sep_is_pattern)`
- * `separator`: string, default: `","`
+ * `separator`: string, cannot be empty, default: `","`
* `include_empty`: boolean, default: `false`
* `max_splits`: number, if it's negative, splits aren't limited,
default: `-1`