(eldoc-message-commands): Move docstring into comments, since this isn't
a user variable. (eldoc-message-commands-table-size, eldoc-use-idle-timer-p, eldoc-function-argstring-from-docstring-method-table): Use defvar, not defconst. (eldoc-last-data): Use cons explicitly; don't rely on dotted pair read syntax. I'm worried the latter might get compiled as read-only data someday. (eldoc-docstring-message): If truncating symbol name, show ending of name rather than beginning. The former is generally more unique. (eldoc-function-argstring-from-docstring-method-table): Handle pathological `save-restriction' case. [top level]: Add `indent-for-tab-command' to eldoc-message-commands.
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