guix: Fix typo in docstring.

* guix/build/syscalls.scm (device-in-use?)<docstring>: Fix typo.

guix/build/syscalls.scm

@@ -692,7 +692,7 @@ (define-syntax BLKRRPART                         ;<sys/mount.h>
 
 (define* (device-in-use? device)
   "Return #t if the block DEVICE is in use, #f otherwise. This is inspired
-from fdisk_device_is_used function of util-linux. This is particulary useful
+from fdisk_device_is_used function of util-linux. This is particularly useful
 for devices that do not appear in /proc/self/mounts like overlayfs lowerdir
 backend device."
   (let*-values (((fd)      (open-fdes device O_RDONLY))