Update dep method in test file (#122)

* update dep takebuf_string

* Update REQUIRE

Author: musm

REQUIRE

@@ -2,4 +2,4 @@ julia 0.4
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-Compat 0.8
+Compat 0.9.5

test/runtests.jl

@@ -34,7 +34,7 @@ cd(Pkg.dir("Coverage")) do
     # we only have a single file, but we want to test on the Vector of file results
     LCOV.write(lcov, FileCoverage[r])
     open(joinpath(datadir, "expected.info")) do f
-        @test takebuf_string(lcov) == readstring(f)
+        @test String(take!(lcov)) == readstring(f)
     end
 
     # Test a file from scratch