=== modified file 'scripts/mysqld_safe.sh'
--- scripts/mysqld_safe.sh	2013-09-21 03:10:54 +0000
+++ scripts/mysqld_safe.sh	2014-01-23 23:37:39 +0000
@@ -143,10 +143,18 @@
   log_generic daemon.notice "$@"
 }
 
+# Open and close the log file to output to the correct file during log rotation.
+log_to_file() {
+  while read line
+  do
+    echo $line >> "`shell_quote_string "$err_log"`"
+  done
+}
+
 eval_log_error () {
   cmd="$1"
   case $logging in
-    file) cmd="$cmd >> "`shell_quote_string "$err_log"`" 2>&1" ;;
+    file) cmd="$cmd 2>&1 | log_to_file" ;;
     syslog)
       # mysqld often prefixes its messages with a timestamp, which is
       # redundant when logging to syslog (which adds its own timestamp)