Plot single page in hierarchical schematic uses incorrect filename

[Seth Hillbrand]

Open a hierarchical schematic.
Plot all pages -> output filename is <top_level_project_name.pdf>
Enter subsheet
Plot single page -> output filename is <subsheet - subsheet.pdf>

I think that the single sheet output should be <top_level-subsheet.pdf>

Application: Eeschema
Version: (5.99.0-360-ga6b94b37e), debug build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.64.0 OpenSSL/1.1.1d zlib/1.2.11 libidn2/2.0.5 libpsl/0.20.2 (+libidn2/2.0.5) libssh2/1.8.0 nghttp2/1.36.0 librtmp/2.3
Platform: Linux 4.19.0-6-amd64 x86_64, 64 bit, Little endian, wxGTK
Build Info:
    Build date: Nov 12 2019 13:51:06
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
    Boost: 1.67.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.64.0
    Compiler: GCC 8.3.0 with C++ ABI 1013

Build settings:
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=ON
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=ON
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON
    KICAD_STDLIB_DEBUG=ON
    KICAD_SANITIZE=OFF

[KiCad Janitor (kicad-janitor)]

Fixed in revision 7a8f2a56233bdc8a8c7dc2c8281c1d237ede092c
https://git.launchpad.net/kicad/patch/?id=7a8f2a56233bdc8a8c7dc2c8281c1d237ede092c