gitk: Fix wrong translation
gitk: Fix wrong translation

Signed-off-by: YOKOTA Hiroshi <e4911f5f362e60d24404536db07f333a8c07e738@netlab.cs.tsukuba.ac.jp>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git