depcomp: avoid trailing backslash in depfile for depmode=msvc7 When compiling a file without any dependencies (no #includes), the msvc7 depmode (and consequently msvc7msys) generates a depfile Makefile fragment with the last line ending with a backslash. This is less robust than needed. Fixes automake bug#14501. * lib/depcomp (msvc7): Finish off the depfile Makefile fragment with an empty line. (scriptversion): Update. Signed-off-by: Peter Rosin <peda@lysator.liu.se>