tests: make 'f' tool open files in binary mode when hexdumping

On Windows, the various bundle hexdumps were being truncated at the first
occurrence of 0x1a.  The line endings in the sequence generation then needs to
be standardized on LF so that the file is the same for the tool tests.

tests/f

@@ -44,7 +44,7 @@ def visit(opts, filenames, outfile):
             if opts.type:
                 facts.append('file')
             if opts.hexdump or opts.dump or opts.md5:
-                content = file(f).read()
+                content = file(f, 'rb').read()
         elif islink:
             if opts.type:
                 facts.append('link')

tests/test-tools.t

@@ -43,7 +43,13 @@ Tests of the file helper tool
   foo: mode=644
 #endif
 
+#if no-windows
   $ python $TESTDIR/seq.py 10 > bar
+#else
+Convert CRLF -> LF for consistency
+  $ python $TESTDIR/seq.py 10 | sed "s/$//" > bar
+#endif
+
 #if unix-permissions symlink
   $ chmod +x bar
   $ f bar --newer foo --mode --type --size --dump --links --bytes 7