Minor improvement for test script

When running on Linux it uses GNU sed to substitute windows pathname
seperators for unix-like ones.
Don't currently do this on any other unix's as I use the "in place"
option of GNU sed that isn't available everywhere.
Further compatibility would require more extensive changes that may very
well be overwritten in the future.

Author: hardenedapple

tests/test.sh

@@ -1,3 +1,9 @@
 # This suite requires https://github.com/inkarkat/runVimTests to run
+if [[ $(uname -s) == "Linux" ]]; then
+    sed -i ':a; s,^\([^|]*\)\\,\1/,g; ta' *.ok
+fi
 TEST_SOURCES="--pure --runtime bundle/vim-easygrep/autoload/EasyGrep.vim --runtime bundle/vim-easygrep/plugin/EasyGrep.vim"
 bash ../../runVimTests/bin/runVimTests.sh $TEST_SOURCES vimgrep.suite
+if [[ $(uname -s) == "Linux" ]]; then
+    sed -i ':a; s,^\([^|]*\)/,\1\\,g; ta' *.ok
+fi