correct stack frame table keys in debug/stack doc
doc for debug/stack listed :column and :line as keys in the frame table.
But doframe actually sets :source-column and :source-line.
@@ -340,9 +340,9 @@ JANET_CORE_FN(cfun_debug_stack,
"stack frame is the first table in the array, and the bottom-most stack frame "
"is the last value. Each stack frame contains some of the following attributes:\n\n"
"* :c - true if the stack frame is a c function invocation\n\n"
- "* :column - the current source column of the stack frame\n\n"
+ "* :source-column - the current source column of the stack frame\n\n"
"* :function - the function that the stack frame represents\n\n"
- "* :line - the current source line of the stack frame\n\n"
+ "* :source-line - the current source line of the stack frame\n\n"
"* :name - the human-friendly name of the function\n\n"
"* :pc - integer indicating the location of the program counter\n\n"
"* :source - string with the file path or other identifier for the source code\n\n"
