base: Remove unused variable assignment in JSON string parsing

lib/base/json.c

@@ -893,7 +893,7 @@ parse_string(struct parse_ctx *ctx)
             continue; /* This will cause p0 to be realloc'ed */
         }
         p_save = ctx->p;
-        ctop = cbot = -3;
+        cbot = -3;
         ctop = unescape_unicode(ctx);
         if (ctop == -1 && strict)
             return parse_string_error(ctx, p0, "Invalid escaped Unicode");

lib/base/log.c

@@ -227,6 +227,8 @@ open_syslog(heim_context context,
                            close_syslog, sd);
     if (ret)
         free(sd);
+    else
+        sd = NULL;
     return ret;
 }
 
@@ -348,6 +350,7 @@ open_file(heim_context context, heim_log_facility *fac, int min, int max,
         free(fd);
     } else if (disp & FILEDISP_KEEPOPEN) {
         log_file(context, NULL, NULL, fd);
+        fd = NULL;
     }
     return ret;
 }