config: fix property values being truncated.

Signed-off-by: Phillip Whelan <phil@calyptia.com>

Author: pwhelan

src/config_format/flb_config_format.c

@@ -193,7 +193,7 @@ struct cfl_variant *flb_cf_section_property_add(struct flb_cf *cf,
     }
 
     if (v_len == 0) {
-        v_len = strlen(k_buf);
+        v_len = strlen(v_buf);
     }
     val = flb_sds_create_len(v_buf, v_len);
     if (val == NULL) {

src/fluent-bit.c

@@ -723,14 +723,15 @@ static int service_configure_plugin(struct flb_config *config,
             ins = flb_output_new(config, tmp, NULL, FLB_TRUE);
         }
         flb_sds_destroy(tmp);
-        flb_sds_destroy(name);
 
         /* validate the instance creation */
         if (!ins) {
             flb_error("[config] section '%s' tried to instance a plugin name "
                       "that don't exists", name);
+            flb_sds_destroy(name);
             return -1;
         }
+        flb_sds_destroy(name);
 
         /*
          * iterate section properties and populate instance by using specific