add keys for string formatting
add keys for string formatting


Former-commit-id: 270f7e3d632245a4da9516f36aa587653488bac9 [formerly 8fd4387ceaa3d8a6c52cfd8272eacefdc325d698] [formerly 05cb6410128c53f0f2ef6505cd7f845483d0adb5]
Former-commit-id: dbd7c4645664869aa8020fd6597d2630aa60c3e6 [formerly babef634e6c48db1b87f023466627c8f96d0602f]
Former-commit-id: d2ca07200da45296ba7d510731b5e377218e6274
ritjoe/ofCourse,ritjoe/ofCourse,sctjkc01/ofCourse,ryansb/ofCourse,ryansb/ofCourse,sctjkc01/ofCourse