tests: add new test f_eofblocks

Since we have changed the eofblocks handling in e2fsck (by removing
the need for the EOFBLOCKS_FL flag), we should have a test to check
out how we handle uninitialized and initialized blocks which are exist
beyond i_size, with files that have (and don't have) the EOFBLOCKS_FL.

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

tests/f_eofblocks/expect.1

@@ -0,0 +1,13 @@
+Pass 1: Checking inodes, blocks, and sizes
+Inode 30, i_size is 2048, should be 4096.  Fix? yes
+
+Inode 31, i_size is 2048, should be 4096.  Fix? yes
+
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+
+test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
+test_filesys: 31/56 files (29.0% non-contiguous), 83/400 blocks
+Exit status is 1

tests/f_eofblocks/expect.2

@@ -0,0 +1,7 @@
+Pass 1: Checking inodes, blocks, and sizes
+Pass 2: Checking directory structure
+Pass 3: Checking directory connectivity
+Pass 4: Checking reference counts
+Pass 5: Checking group summary information
+test_filesys: 31/56 files (29.0% non-contiguous), 83/400 blocks
+Exit status is 0

tests/f_eofblocks/name

@@ -0,0 +1 @@
+blocks after i_size