Add ExtraDefine back for LEAKS_IDENTIFYING

Author: bording

build.libgit2sharp.sh

@@ -10,7 +10,7 @@ EXTRADEFINE="$1"
 export LD_LIBRARY_PATH=.
 
 dotnet restore
-dotnet build LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj -f netcoreapp1.0
+dotnet build LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj -f netcoreapp1.0 /property:ExtraDefine="$EXTRADEFINE"
 dotnet test LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj -f netcoreapp1.0 --no-build
 
 exit $?