Try other encodings for ggrep if utf-8 fails

[Poikilos]

Actual behavior

* ignored binary file "MultiCraft-base/MultiCraft-042f4d478/games/default/files/bluestone/mesecons/util.lua" due to: 'utf-8' codec can't decode byte 0x93 in position 6189: invalid start byte
* ignored binary file "MultiCraft-base/MultiCraft-042f4d478/games/default/files/bluestone/mesecons_mvps/init.lua" due to: 'utf-8' codec can't decode byte 0x92 in position 7437: invalid start byte
. . .
* ignored binary file "minetest.org/src/unittest/test_settings.cpp" due to: 'utf-8' codec can't decode byte 0xa4 in position 1603: invalid start byte
. . .
* ignored binary file "minetest/src/unittest/test_settings.cpp" due to: 'utf-8' codec can't decode byte 0xa4 in position 1603: invalid start byte
. . .
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/bpydata/KUlang.txt" due to: 'utf-8' codec can't decode byte 0xf3 in position 698: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/bpymodules/paths_ai2obj.py" due to: 'utf-8' codec can't decode byte 0xe9 in position 427: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/bpymodules/paths_gimp2obj.py" due to: 'utf-8' codec can't decode byte 0xe9 in position 347: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/bpymodules/paths_svg2obj.py" due to: 'utf-8' codec can't decode byte 0xe9 in position 374: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/blenderLipSynchro.py" due to: 'utf-8' codec can't decode byte 0xe8 in position 6931: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/c3d_import.py" due to: 'utf-8' codec can't decode byte 0xea in position 5975: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/export_m3g.py" due to: 'utf-8' codec can't decode byte 0xf6 in position 398: invalid start byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/hotkeys.py" due to: 'utf-8' codec can't decode byte 0xe9 in position 1226: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/paths_import.py" due to: 'utf-8' codec can't decode byte 0xe9 in position 1550: invalid continuation byte
* ignored binary file "yofrankie-install/blender-2.49a-linux-glibc236-py26-x86_64/.blender/scripts/rvk1_torvk2.py" due to: 'utf-8' codec can't decode byte 0xe9 in position 2151: invalid continuation byt

Expected behavior

• Try another encoding.
• Search the files.