Fix copyFile wrapper when retry hits EMFILE again
Fix copyFile wrapper when retry hits EMFILE again

PR-URL: https://github.com/isaacs/node-graceful-fs/pull/209
Credit: da39a3ee5e6b4b0d3255bfef95601890afd80709@mbargiel
Close: #209
Reviewed-by: da39a3ee5e6b4b0d3255bfef95601890afd80709@isaacs

isaacs/node-graceful-fs,isaacs/node-graceful-fs