[nongnu] elpa/helm-core updated (1003539c2e -> cac2ffceef)

[ELPA Syncer]

elpasync pushed a change to branch elpa/helm-core.

      from  1003539c2e Fix some warnings
      adds  576133622a Restore helm-source-file-name-history removed in a 
previous commit
      adds  a6634a17b6 Make file-name-history date more readable
      adds  cac2ffceef Protect system processes calls (Issue #2497)

No new revisions were added by this update.

Summary of changes:
 helm-files.el |  9 ++++++++-
 helm-lib.el   | 14 +++++++++-----
 2 files changed, 17 insertions(+), 6 deletions(-)