init: Log powerd and powerm's stdout/stderr to /var/log.

We were previously writing to files within
/var/log/power_manager.

BUG=chromium-os:36888
TEST=observe that output goes to /var/log/power[dm].out
CQ-DEPEND=I0891c8e9f3d3593b7f084bae40ff5e40c39516e9

Change-Id: I5788f32cc7f4e2f021315e6d7b86fccaaacc7c63
Reviewed-on: https://gerrit.chromium.org/gerrit/39348
Tested-by: Daniel Erat <derat@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Ready: Daniel Erat <derat@chromium.org>
diff --git a/powerd.conf b/powerd.conf
index 4891e7c..e45774e 100644
--- a/powerd.conf
+++ b/powerd.conf
@@ -46,4 +46,4 @@
     --default_prefs_dir=${DEFAULT_PREFS_DIR}  \
     --log_dir=${LOG_DIR}                      \
     --run_dir=${RUN_DIR}                      \
-    >${LOG_DIR}/powerd.out 2>&1
+    >/var/log/powerd.out 2>&1
diff --git a/powerm.conf b/powerm.conf
index 2277e33..77344fe 100644
--- a/powerm.conf
+++ b/powerm.conf
@@ -21,4 +21,4 @@
 
 exec powerm --prefs_dir=${PREFS_DIR}                              \
             --log_dir=${LOG_DIR}                                  \
-            --run_dir=${RUN_DIR} >${LOG_DIR}/powerm.out 2>&1
+            --run_dir=${RUN_DIR} >/var/log/powerm.out 2>&1