Print general usage information for event_log_analyzer

Print general usage information for event_log_analyzer

Print general usage information for event_log_analyzer (in addition to listing the command line flags) when called with '--help'.

BUG=None

Review-Url: https://codereview.webrtc.org/2986573002
Cr-Commit-Position: refs/heads/master@{#19104}
Committed: https://chromium.googlesource.com/external/webrtc/+/c4a5c14e8aae5916c1742513477106eb170bf9b7

[terelius, 2017-07-20 14:24:56]

terelius@webrtc.org changed reviewers:
+ minyue@webrtc.org

[minyue-webrtc, 2017-07-20 14:36:03]

lgtm

[terelius, 2017-07-20 14:38:26]

The CQ bit was checked by terelius@webrtc.org

[commit-bot: I haz the power, 2017-07-20 14:38:37]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-07-20 15:05:10]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1500561506778770, "parent_rev":
"ad908f877e1fa860fef70bc5c74f889769f2ef0d", "commit_rev":
"c4a5c14e8aae5916c1742513477106eb170bf9b7"}

[commit-bot: I haz the power, 2017-07-20 15:05:15]

Description was changed from

==========
Print general usage information for event_log_analyzer

Print general usage information for event_log_analyzer (in addition to listing
the command line flags) when called with '--help'.

BUG=None
==========

to

==========
Print general usage information for event_log_analyzer

Print general usage information for event_log_analyzer (in addition to listing
the command line flags) when called with '--help'.

BUG=None

Review-Url: https://codereview.webrtc.org/2986573002
Cr-Commit-Position: refs/heads/master@{#19104}
Committed:
https://chromium.googlesource.com/external/webrtc/+/c4a5c14e8aae5916c17425134...
==========

[commit-bot: I haz the power, 2017-07-20 15:05:16]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/c4a5c14e8aae5916c17425134...