Fix gcc -Wall nits

In the patches libext2fs-handle-inline-data-in-read-write-function and
debugfs-make-stat-command-support-inline-data

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Fix gcc -Wall nits

Fixed up:
   * debugfs-handle-inline_data-feature-in-dirsearch-command
   * debugfs-handle-inline_data-feature-in-bmap-command

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Fix gcc -Wall nits

In the following patches:
   * debugfs-handle-inline_data-in-punch-command
   * libext2fs-add-inline_data-feature-into-EXT2_LIB_FEAT

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Move final gcc fixups to the commits which added the code

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Rename libext2fs-fix-some-warnings-from-gcc-Wall

There was a substantive change, disabling punch for inline data, which
was hidden in the gcc Wall cleanup patch.  (This isn't the only patch
where this was done; just the most obvious.)

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
update timestamps