fix qmk completion

- fix wrong short flag name

src/_qmk

@@ -242,7 +242,7 @@ _qmk_flash() {
     '(-c --clean)'{-c,--clean}'[Remove object files before compiling]' \
     \*{-e,--env}'[Set a variable to be passed to make]:env' \
     '(-j --parallel)'{-j,--parallel}'[Set the number of parallel make jobs; 0 means unlimited]' \
-    '(-n --dry-run)'{-d,--dry-run}"[Don't actually build, just show the make command to be run]" \
+    '(-n --dry-run)'{-n,--dry-run}"[Don't actually build, just show the make command to be run]" \
     '(-km --keymap)'{-km,--keymap}'[The keymap to build a firmware for]:keymap' \
     '(-kb --keyboard)'{-kb,--keyboard}'[The keyboard to build a firmware for]:keyboard' \
     '(-m --mcu)'{-m,--mcu}'[The MCS name]:mcu' \