spark git commit: [SPARK-20877][SPARKR][WIP] add timestamps to test runs

Repository: spark Updated Branches: refs/heads/branch-2.2 287440df6 -> 3cad66e5e [SPARK-20877][SPARKR][WIP] add timestamps to test runs to investigate how long they run Jenkins, AppVeyor Author: Felix Cheung Closes #18104 from felixcheung/rtimetest. (cherry

spark git commit: [SPARK-20877][SPARKR][WIP] add timestamps to test runs

Repository: spark Updated Branches: refs/heads/master 1f5dddffa -> 382fefd18 [SPARK-20877][SPARKR][WIP] add timestamps to test runs ## What changes were proposed in this pull request? to investigate how long they run ## How was this patch tested? Jenkins, AppVeyor Author: Felix Cheung