Fixed first-line problem for function documentation strings.

lisp/emacs-lisp/unsafep.el

@@ -83,13 +83,13 @@
 (require 'byte-opt)  ;Set up the `side-effect-free' properties
 
 (defcustom safe-functions nil
-  "t to disable all safety checks, or a list of assumed-safe functions."
+  "t to disable `unsafep', or a list of assumed-safe functions."
   :group 'lisp
   :type  '(choice (const :tag "No" nil) (const :tag "Yes" t) hook))
 
 (defvar unsafep-vars nil
-  "Dynamically-bound list of variables that have lexical bindings at this
-point in the parse.")
+  "Dynamically-bound list of variables with lexical bindings at this point
+in the parse.")
 (put 'unsafep-vars 'risky-local-variable t)
 
 ;;Side-effect-free functions from subr.el
@@ -114,9 +114,9 @@ point in the parse.")
 
 ;;;###autoload
 (defun unsafep (form &optional unsafep-vars)
-  "Return nil if evaluating FORM couldn't possibly do any harm; otherwise
-result is a reason why FORM is unsafe.  UNSAFEP-VARS is a list of symbols
-with local bindings."
+  "Return nil if evaluating FORM couldn't possibly do any harm;
+otherwise result is a reason why FORM is unsafe.  UNSAFEP-VARS is a list
+of symbols with local bindings."
   (catch 'unsafep
     (if (or (eq safe-functions t)	    ;User turned off safety-checking
 	    (atom form))		    ;Atoms are never unsafe
@@ -210,8 +210,9 @@ with local bindings."
 
 
 (defun unsafep-function (fun)
-  "Return nil if FUN is a safe function (either a safe lambda or a
-symbol that names a safe function).  Otherwise result is a reason code."
+  "Return nil if FUN is a safe function
+\(either a safe lambda or a symbol that names a safe function).  Otherwise
+result is a reason code." 
   (cond
    ((eq (car-safe fun) 'lambda)
     (unsafep fun unsafep-vars))
@@ -223,8 +224,8 @@ symbol that names a safe function).  Otherwise result is a reason code."
     `(function ,fun))))
 
 (defun unsafep-progn (list)
-  "Return nil if all forms in LIST are safe, or the reason for the first
-unsafe form."
+  "Return nil if all forms in LIST are safe, or the reason
+for the first unsafe form."
   (catch 'unsafep-progn
     (let (reason)
       (dolist (x list)
@@ -232,8 +233,8 @@ unsafe form."
 	(if reason (throw 'unsafep-progn reason))))))
 
 (defun unsafep-let (clause)
-  "CLAUSE is a let-binding, either SYM or (SYM) or (SYM VAL).  Throws a
-reason to `unsafep' if VAL isn't safe.  Returns SYM."
+  "CLAUSE is a let-binding, either SYM or (SYM) or (SYM VAL).  Checks VAL
+and throws a reason to `unsafep' if unsafe.  Returns SYM."
   (let (reason sym)
     (if (atom clause)
 	(setq sym clause)
@@ -244,8 +245,9 @@ reason to `unsafep' if VAL isn't safe.  Returns SYM."
     sym))
 
 (defun unsafep-variable (sym global-okay)
-  "Returns nil if SYM is lexically bound or is a non-risky buffer-local
-variable, otherwise a reason why it is unsafe.  Failing to be locally bound
+  "Returns nil if SYM is safe as a let-binding sym
+\(because it already has a temporary binding or is a non-risky buffer-local
+variable), otherwise a reason why it is unsafe.  Failing to be locally bound
 is okay if GLOBAL-OKAY is non-nil."
   (cond
    ((not (symbolp sym))