[CRIU] [PATCH 2/3] log: Add pr_cont helper

[Cyrill Gorcunov]

Sometimes we split output printing in several pr_ calls, which
causes log engine to inject time delta at the front of the record.
For example

 | (00.007461) Obtaining task stat ... (00.007497)

instead of ending delta there should be plain \n.

For this sake we introduce pr_cont() helper. It works similar
to what pr_cont in kernel does -- continues printing a line.

Note it's not multithread safe so don't use it outside of
dumping procedure. At least for now.

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 include/log.h |  4 ++++
 log.c         | 14 ++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

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