filestore: only allow one filestore to be enabled

There is probably not too much bad about enabling both, but
open file counts can get messy with both enabled. And v1
should be schedule for deprecation soon enough.

src/log-filestore.c

@@ -584,6 +584,13 @@ static OutputInitResult LogFilestoreLogInitCtx(ConfNode *conf)
         }
     }
 
+    if (RunModeOutputFiledataEnabled()) {
+        SCLogWarning(SC_ERR_NOT_SUPPORTED,
+                "A file data logger is already enabled. Filestore (v1) "
+                "will not be enabled.");
+        return result;
+    }
+
     OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
     if (unlikely(output_ctx == NULL))
         return result;

src/output-filestore.c

@@ -387,6 +387,13 @@ static OutputInitResult OutputFilestoreLogInitCtx(ConfNode *conf)
         return result;
     }
 
+    if (RunModeOutputFiledataEnabled()) {
+        SCLogWarning(SC_ERR_NOT_SUPPORTED,
+                "A file data logger is already enabled. Filestore (v2) "
+                "will not be enabled.");
+        return result;
+    }
+
     char log_directory[PATH_MAX] = "";
     GetLogDirectory(conf, log_directory, sizeof(log_directory));
     if (!InitFilestoreDirectory(log_directory)) {