[test] fix l64 test was not running

Author: ferdymercury

roottest/root/tree/index/CMakeLists.txt

@@ -15,6 +15,10 @@ ROOTTEST_ADD_TEST(index64
                   MACRO runindex64.C
                   OUTREF index64.ref)
 
+ROOTTEST_ADD_TEST(indexl64
+                  MACRO runindexl64.C
+                  OUTREF indexl64.ref)
+
 ROOTTEST_ADD_TEST(varsizearr
                   MACRO runvarsizearr.C
                   OUTREF varsizearr.ref)

roottest/root/tree/index/runindexl64.C

@@ -5,9 +5,8 @@
 bool test(TTree *);
 
 const char *fname = "indexl64.root";
-https : // github.com/root-project/root/pull/19561
-        const Long64_t bigval =
-           0x0FFFFFFFFFFFFFFF; // here we skip long double, so we can go higher than with runindex64.C
+// https://github.com/root-project/root/pull/19561
+const Long64_t bigval = 0x0FFFFFFFFFFFFFFF; // here we skip long double, so we can go higher than with runindex64.C
 
 int runindexl64()
 {