Avoid backslash-newline-newline in source code

* etc/refcards/Makefile (PDF_FRENCH):
* lib-src/etags.c (LOOP_ON_INPUT_LINES):
* lisp/dabbrev.el (dabbrev-check-other-buffers):
* lisp/org/org-id.el (org-id-link-to-org-use-id):
* lisp/org/org.el (org-support-shift-select, org-file-apps):
* src/alloc.c (CHECK_ALLOCATED_AND_LIVE)
(CHECK_ALLOCATED_AND_LIVE_SYMBOL):
* src/frame.h (FRAME_PIXEL_WIDTH_TO_TEXT_COLS):
* src/regex-emacs.c (PREFETCH_NOLIMIT):
* src/window.h (WINDOW_BUFFER):
Remove backslash-newline that immediately precedes another
newline, as this is not the usual style and is confusing.

etc/refcards/Makefile

@@ -40,7 +40,7 @@ PDF_CZECH = \
 PDF_FRENCH = \
 	fr-dired-ref.pdf \
 	fr-refcard.pdf \
-	fr-survival.pdf \
+	fr-survival.pdf
 
 PDF_GERMAN = de-refcard.pdf
 

lib-src/etags.c

@@ -4282,7 +4282,7 @@ Yacc_entries (FILE *inf)
   while (perhaps_more_input (file_pointer)				\
 	 && (readline (&(line_buffer), file_pointer),			\
 	     (char_pointer) = (line_buffer).buffer,			\
-	     true))							\
+	     true))
 
 #define LOOKING_AT(cp, kw)  /* kw is the keyword, a literal string */	\
   ((assert ("" kw), true)   /* syntax error if not a literal string */	\

lisp/dabbrev.el

@@ -237,8 +237,7 @@ See also `dabbrev-ignored-buffer-names'."
   :version "21.1")
 
 (defcustom dabbrev-check-other-buffers t
-  "Should \\[dabbrev-expand] look in other buffers?\
-
+  "Should \\[dabbrev-expand] look in other buffers?
 nil: Don't look in other buffers.
 t: Also look for expansions in the buffers pointed out by
    `dabbrev-select-buffers-function'.

lisp/org/org-id.el

@@ -83,8 +83,7 @@
 
 (defcustom org-id-link-to-org-use-id nil
   "Non-nil means storing a link to an Org file will use entry IDs.
-\\<org-mode-map>\
-
+\\<org-mode-map>
 The variable can have the following values:
 
 t     Create an ID if needed to make a link to the current entry.

lisp/org/org.el

@@ -863,8 +863,7 @@ depends on, if any."
 
 (defcustom org-support-shift-select nil
   "Non-nil means make shift-cursor commands select text when possible.
-\\<org-mode-map>\
-
+\\<org-mode-map>
 In Emacs 23, when `shift-select-mode' is on, shifted cursor keys
 start selecting a region, or enlarge regions started in this way.
 In Org mode, in special contexts, these same keys are used for
@@ -2259,8 +2258,7 @@ See `org-file-apps'.")
     ("\\.x?html?\\'" . default)
     ("\\.pdf\\'" . default))
   "External applications for opening `file:path' items in a document.
-\\<org-mode-map>\
-
+\\<org-mode-map>
 Org mode uses system defaults for different file types, but
 you can use this variable to set the application for a given file
 extension.  The entries in this list are cons cells where the car identifies

src/alloc.c

@@ -6384,7 +6384,7 @@ mark_object (Lisp_Object arg)
   do {						\
     CHECK_ALLOCATED ();				\
     CHECK_LIVE (LIVEP);				\
-  } while (0)					\
+  } while (false)
 
   /* Check both of the above conditions, for symbols.  */
 #define CHECK_ALLOCATED_AND_LIVE_SYMBOL()	\
@@ -6394,7 +6394,7 @@ mark_object (Lisp_Object arg)
 	CHECK_ALLOCATED ();			\
 	CHECK_LIVE (live_symbol_p);		\
       }						\
-  } while (0)					\
+  } while (false)
 
 #else /* not GC_CHECK_MARKED_OBJECTS */
 

src/frame.h

@@ -1480,7 +1480,7 @@ FRAME_BOTTOM_DIVIDER_WIDTH (struct frame *f)
     - FRAME_TOTAL_FRINGE_WIDTH (f)					\
     - FRAME_SCROLL_BAR_AREA_WIDTH (f)					\
     - 2 * FRAME_INTERNAL_BORDER_WIDTH (f))				\
-   / FRAME_COLUMN_WIDTH (f))						\
+   / FRAME_COLUMN_WIDTH (f))
 
 #define FRAME_PIXEL_HEIGHT_TO_TEXT_LINES(f, height)			\
   (((height)								\

src/regex-emacs.c

@@ -3432,7 +3432,7 @@ static bool bcmp_translate (re_char *, re_char *, ptrdiff_t,
      {									\
        d = string2;							\
        dend = end_match_2;						\
-     }									\
+     }
 
 /* Test if at very beginning or at very end of the virtual concatenation
    of STRING1 and STRING2.  If only one string, it's STRING2.  */

src/window.h

@@ -595,7 +595,7 @@ wset_next_buffers (struct window *w, Lisp_Object val)
 #define WINDOW_BUFFER(W)			\
   (WINDOW_LEAF_P(W)				\
    ? (W)->contents				\
-   : Qnil)					\
+   : Qnil)
 
 /* Return the canonical column width of the frame of window W.  */
 #define WINDOW_FRAME_COLUMN_WIDTH(W) \
@@ -649,7 +649,7 @@ wset_next_buffers (struct window *w, Lisp_Object val)
 #define WINDOW_RIGHTMOST_P(W)					\
   (WINDOW_RIGHT_PIXEL_EDGE (W)					\
    == (WINDOW_RIGHT_PIXEL_EDGE					\
-       (XWINDOW (FRAME_ROOT_WINDOW (WINDOW_XFRAME (W))))))	\
+       (XWINDOW (FRAME_ROOT_WINDOW (WINDOW_XFRAME (W))))))
 
 /* True if window W has no other windows below it on its frame (the
    minibuffer window is not counted in this respect unless W itself is a
@@ -657,13 +657,13 @@ wset_next_buffers (struct window *w, Lisp_Object val)
 #define WINDOW_BOTTOMMOST_P(W)					\
   (WINDOW_BOTTOM_PIXEL_EDGE (W)					\
    == (WINDOW_BOTTOM_PIXEL_EDGE					\
-       (XWINDOW (FRAME_ROOT_WINDOW (WINDOW_XFRAME (W))))))	\
+       (XWINDOW (FRAME_ROOT_WINDOW (WINDOW_XFRAME (W))))))
 
 /* True if window W takes up the full width of its frame.  */
 #define WINDOW_FULL_WIDTH_P(W)					\
   (WINDOW_PIXEL_WIDTH (W)					\
    == (WINDOW_PIXEL_WIDTH					\
-       (XWINDOW (FRAME_ROOT_WINDOW (WINDOW_XFRAME (W))))))	\
+       (XWINDOW (FRAME_ROOT_WINDOW (WINDOW_XFRAME (W))))))
 
 /* Width of right divider of window W.  */
 #define WINDOW_RIGHT_DIVIDER_WIDTH(W)				\
@@ -1122,7 +1122,7 @@ struct glyph *get_phys_cursor_glyph (struct window *w);
 
 /* True if WINDOW is a valid window.  */
 #define WINDOW_VALID_P(WINDOW)					\
-  (WINDOWP (WINDOW) && !NILP (XWINDOW (WINDOW)->contents))	\
+  (WINDOWP (WINDOW) && !NILP (XWINDOW (WINDOW)->contents))
 
 /* A window of any sort, leaf or interior, is "valid" if its
    contents slot is non-nil.  */