debugger: Fix summary help
After commit 0846ada6, printcmd() no longer receives an array of command synonyms, but a single command object with an 'aliases' key.
Adjust the function accordingly to fix showing the summary help.
After commit 0846ada6, printcmd() no longer receives an array of command synonyms, but a single command object with an 'aliases' key.
Adjust the function accordingly to fix showing the summary help.