fstab.c: do not use assignment in if codition

This fixes the following checkpatch error:

 ERROR: do not use assignment in if condition
 #458: FILE: sbin/mount/mount_opts.c:458:
 +               if (opts

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
nilfs-utils: do not use braces for single statement blocks

This fixes the following checkpatch warnings:

 WARNING: braces {} are not necessary for single statement blocks
 #843: FILE: sbin/nilfs-resize/nilfs-resize.c:843:
 +       if (err == ENOTTY) {
 +               myprintf("       This kernel does not support the resize API.\n");
 +       }

 WARNING: braces {} are not necessary for single statement blocks
 #934: FILE: sbin/nilfs-resize/nilfs-resize.c:934:
 +               if (verbose) {
 +                       myprintf("Truncating segments.\n");
 +               }

 WARNING: braces {} are not necessary for any arm of this statement
 #906: FILE: sbin/cleanerd/cleanerd.c:906:
 +       if (cleanerd->running == 0) {
 [...]
 +       } else if (cleanerd->running > 0) {
 [...]
 +       } else {
 [...]

 WARNING: braces {} are not necessary for single statement blocks
 #1253: FILE: sbin/cleanerd/cleanerd.c:1253:
 +       if (cleanerd->mm_nrestpasses == 0 && cleanerd->mm_nrestsegs == 0) {
 +               nilfs_cleanerd_manual_end(cleanerd);
 +       }

 WARNING: braces {} are not necessary for any arm of this statement
 #187: FILE: sbin/mount/sundries.c:187:
 +         if (r) {
 [...]
 +         } else {
 [...]

 WARNING: braces {} are not necessary for any arm of this statement
 #228: FILE: sbin/mount/sundries.c:228:
 +         if (r) {
 [...]
 +         } else {
 [...]

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>