unit-tests: do not mistake .pdb files for being executable

When building the unit tests via CMake, the `.pdb` files are built.
Those are, essentially, files containing the debug information
separately from the executables.

Let's not confuse them with the executables we actually want to run.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: dscho

t/Makefile

@@ -42,7 +42,7 @@ TPERF = $(sort $(wildcard perf/p[0-9][0-9][0-9][0-9]-*.sh))
 TINTEROP = $(sort $(wildcard interop/i[0-9][0-9][0-9][0-9]-*.sh))
 CHAINLINTTESTS = $(sort $(patsubst chainlint/%.test,%,$(wildcard chainlint/*.test)))
 CHAINLINT = '$(PERL_PATH_SQ)' chainlint.pl
-UNIT_TESTS = $(sort $(filter-out unit-tests/bin/t-basic%,$(wildcard unit-tests/bin/t-*)))
+UNIT_TESTS = $(sort $(filter-out %.pdb unit-tests/bin/t-basic%,$(wildcard unit-tests/bin/t-*)))
 
 # `test-chainlint` (which is a dependency of `test-lint`, `test` and `prove`)
 # checks all tests in all scripts via a single invocation, so tell individual