Fix path escape

tests/regress/check.sh

@@ -153,9 +153,8 @@ echo "Fail: $fail"
 if [ "$fail" -eq 0 ] ; then
     code=0
 else
-    find "$logdir" -type f -name "*.error" -printf '%P\0' |
-    while read -rd $'\0' path; do
-      cat "$path"
+    for f in "$logdir"/*.error ; do
+      cat "$f"
       echo
     done
     code=1

tests/regress/run_test.sh

@@ -156,7 +156,8 @@ else
 fi
 
 if [ -d "$out_dir" ] ; then
-    log_file="$out_dir/$(echo "$test_file" | tr '/' '_')"
+    # replace _ with __ and / with _
+    log_file="$out_dir/_$(echo "${test_file//_/__}" | tr '/' '_')}"
 fi
 
 # Run the binary