[PATCH] benchtests: make compare_strings.py accept string as attribute value

[Su Lifan]

Commit ac759b1fbf28a82d99afde9046f8b72c7cba5dae added attribute
"overlap" to bench-memmove-walk, whose value is a string. This change
makes compare_strings.py fail since benchout_strings.schema.json
requires the values of attributes to be number.

This patch relaxes such constraint.
---
 benchtests/scripts/benchout_strings.schema.json | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/benchtests/scripts/benchout_strings.schema.json
b/benchtests/scripts/benchout_strings.schema.json
index 7c9a67134b..bfd9b4e6c0 100644
--- a/benchtests/scripts/benchout_strings.schema.json
+++ b/benchtests/scripts/benchout_strings.schema.json
@@ -28,7 +28,12 @@
 		    "items": {"type": "number"}
                    }
 		 },
-		 "additionalProperties": {"type": "number"},
+		 "additionalProperties": {
+		   "oneOf": [
+		     { "type": "number" },
+		     { "type": "string" }
+		   ]
+		 },
 		 "minProperties": 2
 	      }
 	    }
--
2.32.0