FIX: Correct order when stringify -(A1^1.22) and (-A1)^1.22 (#484)

Fixes #483

base/src/test/mod.rs

@@ -68,6 +68,7 @@ mod test_geomean;
 mod test_get_cell_content;
 mod test_implicit_intersection;
 mod test_issue_155;
+mod test_issue_483;
 mod test_ln;
 mod test_log;
 mod test_log10;