Ignore sdsrange return value.

src/util.c

@@ -438,7 +438,7 @@ sds getAbsolutePath(char *filename) {
     while (sdslen(relpath) >= 3 &&
            relpath[0] == '.' && relpath[1] == '.' && relpath[2] == '/')
     {
-        relpath = sdsrange(relpath,3,-1);
+        sdsrange(relpath,3,-1);
         if (sdslen(abspath) > 1) {
             char *p = abspath + sdslen(abspath)-2;
             int trimlen = 1;
@@ -447,7 +447,7 @@ sds getAbsolutePath(char *filename) {
                 p--;
                 trimlen++;
             }
-            abspath = sdsrange(abspath,0,-(trimlen+1));
+            sdsrange(abspath,0,-(trimlen+1));
         }
     }