remove '=' between command line name/argument.

ease parsing without getopt.

Signed-off-by: Vincent Hanquez <vincent@xensource.com>

tools/misc/xend

@@ -84,7 +84,7 @@ def check_user():
 
 def start_xenstored():
     XENSTORED_TRACE = os.getenv("XENSTORED_TRACE")
-    cmd = "xenstored --pid-file=/var/run/xenstore.pid"
+    cmd = "xenstored --pid-file /var/run/xenstore.pid"
     if XENSTORED_TRACE:
         cmd += " -T /var/log/xenstored-trace.log"
     s,o = commands.getstatusoutput(cmd)