tree-wide: fix a couple of typos

As reported by Fossies.org.

src/test/test-btrfs.c

@@ -50,7 +50,7 @@ int main(int argc, char *argv[]) {
         if (r < 0)
                 log_error_errno(r, "Failed to make subvolume: %m");
 
-        r = write_string_file("/xxxtest/afile", "ljsadhfljasdkfhlkjdsfha", WRITE_STRING_FILE_CREATE);
+        r = write_string_file("/xxxtest/file", "ljsadhfljasdkfhlkjdsfha", WRITE_STRING_FILE_CREATE);
         if (r < 0)
                 log_error_errno(r, "Failed to write file: %m");
 

src/test/test-mount-util.c

@@ -485,7 +485,7 @@ TEST(umount_recursive) {
                         /* Open /p/s/m file before we unmount everything (which might include /proc/) */
                         f = fopen("/proc/self/mountinfo", "re");
                         if (!f) {
-                                log_error_errno(errno, "Faile to open /proc/self/mountinfo: %m");
+                                log_error_errno(errno, "Failed to open /proc/self/mountinfo: %m");
                                 _exit(EXIT_FAILURE);
                         }