build: fix recent syntax-check breakage

The use of readlink() in lxc_container.c is intentional; we don't
want an absolute pathname there.

* src/util/cgroup.h (VIR_CGROUP_SYSFS_MOUNT): Indent properly.
* cfg.mk (exclude_file_name_regexp--sc_prohibit_readlink): Add
exemption.

cfg.mk

@@ -800,7 +800,8 @@ exclude_file_name_regexp--sc_prohibit_nonreentrant = \
 exclude_file_name_regexp--sc_prohibit_raw_allocation = \
   ^(src/util/memory\.[ch]|examples/.*)$$
 
-exclude_file_name_regexp--sc_prohibit_readlink = ^src/util/util\.c$$
+exclude_file_name_regexp--sc_prohibit_readlink = \
+  ^(src/(util/util|lxc/lxc_container)\.c$$
 
 exclude_file_name_regexp--sc_prohibit_setuid = ^src/util/util\.c$$
 

src/util/cgroup.h

@@ -16,7 +16,7 @@
 struct virCgroup;
 typedef struct virCgroup *virCgroupPtr;
 
-#define VIR_CGROUP_SYSFS_MOUNT "/sys/fs/cgroup"
+# define VIR_CGROUP_SYSFS_MOUNT "/sys/fs/cgroup"
 
 enum {
     VIR_CGROUP_CONTROLLER_CPU,