correct the setup.py for proper regex replacement and add logfile in daemon mode

hhvm/deploy/config-debug.hdf

@@ -12,8 +12,10 @@ Server {
 
 # Enable debug logging
 Log {
+  UseLogFile = true
   UseSyslog = false
   Level = Verbose
+  File = /tmp/FrameworkBenchmarks/hhvm/error.log
 }
 
 # Enable jit for production mode

hhvm/deploy/config.hdf

@@ -12,8 +12,10 @@ Server {
 
 # Disable logging completely
 Log {
+  UseLogFile = false
   UseSyslog = false
   Level = Error
+  File = /tmp/FrameworkBenchmarks/hhvm/error.log
 }
 
 # Enable jit for production mode

hhvm/setup.py

@@ -7,10 +7,12 @@ from os.path import expanduser
 home = expanduser("~")
 
 def start(args, logfile, errfile):
-  setup_util.replace_text("hhvm/once.php.inc", "host=.*;", "host=" + args.database_host + ";")
+  setup_util.replace_text("hhvm/once.php.inc", "host=localhost;", "host=" + args.database_host + ";")
   setup_util.replace_text("hhvm/deploy/config.hdf", "SourceRoot = .*\/FrameworkBenchmarks", "SourceRoot = " + home + "/FrameworkBenchmarks")
   setup_util.replace_text("hhvm/deploy/config.hdf", "Path = .*\/.hhvm.hhbc", "Path = " + home + "/FrameworkBenchmarks/hhvm/.hhvm.bbhc")
-  setup_util.replace_text("hhvm/deploy/config.hdf", "PidFile = .*\/hhvm.pid", "Path = " + home + "/FrameworkBenchmarks/hhvm/hhvm.pid")
+  setup_util.replace_text("hhvm/deploy/config.hdf", "PidFile = .*\/hhvm.pid", "PidFile = " + home + "/FrameworkBenchmarks/hhvm/hhvm.pid")
+  setup_util.replace_text("hhvm/deploy/config.hdf", "File = .*\/error.log", "File = " + home + "/FrameworkBenchmarks/hhvm/error.log")
+
 
   try:
     if os.name == 'nt':