"List of undo entries in current buffer.\n\
Recent changes come first; older changes follow newer.\n\
\n\
-An entry (START . END) represents an insertion which begins at\n\
-position START and ends at position END.\n\
+An entry (BEG . END) represents an insertion which begins at\n\
+position BEG and ends at position END.\n\
\n\
An entry (TEXT . POSITION) represents the deletion of the string TEXT\n\
from (abs POSITION). If POSITION is positive, point was at the front\n\