Doc fix.

6 files changed, 7 insertions, 7 deletions

diff --git a/src/keymap.c b/src/keymap.c
index 33e3244c061..cc70f6331c7 100644
--- a/src/keymap.c
+++ b/src/keymap.c
@@ -1045,7 +1045,7 @@ the front of KEYMAP.  */)
     }
 }
 
-/* Value is number if KEY is too long; NIL if valid but has no definition. */
+/* Value is number if KEY is too long; nil if valid but has no definition. */
 /* GC is possible in this function if it autoloads a keymap.  */
 
 DEFUN ("lookup-key", Flookup_key, Slookup_key, 2, 3, 0,
diff --git a/src/lread.c b/src/lread.c
index 80463c1e18e..824e34ae47b 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -3229,8 +3229,8 @@ defvar_int (namestring, address)
   SET_SYMBOL_VALUE (sym, val);
 }
 
-/* Similar but define a variable whose value is T if address contains 1,
-   NIL if address contains 0 */
+/* Similar but define a variable whose value is t if address contains 1,
+   nil if address contains 0 */
 void
 defvar_bool (namestring, address)
      char *namestring;
diff --git a/src/w32term.c b/src/w32term.c
index 19e51266dac..96b4821a815 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -11113,7 +11113,7 @@ wide as that tab on the display.  */);
   DEFVAR_BOOL ("x-use-underline-position-properties",
                &x_use_underline_position_properties,
                doc: /* *Non-nil means make use of UNDERLINE_POSITION font properties.
-Nil means ignore them.  If you encounter fonts with bogus
+nil means ignore them.  If you encounter fonts with bogus
 UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
 to 4.1, set this to nil.  */);
   x_use_underline_position_properties = 1;
diff --git a/src/xdisp.c b/src/xdisp.c
index 1dd5f0fa985..320075ba49d 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -14952,7 +14952,7 @@ go back to their normal size.  */);
   DEFVAR_BOOL ("cursor-in-non-selected-windows",
                &cursor_in_non_selected_windows,
     doc: /* *Non-nil means display a hollow cursor in non-selected windows.
-Nil means don't display a cursor there.  */);
+nil means don't display a cursor there.  */);
   cursor_in_non_selected_windows = 1;
   
   DEFVAR_BOOL ("automatic-hscrolling", &automatic_hscrolling_p,
diff --git a/src/xfaces.c b/src/xfaces.c
index f1477fdea4c..704a31d9b35 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -3330,7 +3330,7 @@ merge_face_vectors (f, from, to, cycle_check)
    elements, this macro begins consing in order to keep more precise
    track of elements.
 
-   Returns NIL if a cycle was detected, otherwise a new value for CHECK
+   Returns nil if a cycle was detected, otherwise a new value for CHECK
    that includes EL.
 
    CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
diff --git a/src/xterm.c b/src/xterm.c
index 51b94c9fb37..ccc54c7fb14 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -14871,7 +14871,7 @@ wide as that tab on the display.  */);
   DEFVAR_BOOL ("x-use-underline-position-properties",
                &x_use_underline_position_properties,
      doc: /* *Non-nil means make use of UNDERLINE_POSITION font properties.
-Nil means ignore them.  If you encounter fonts with bogus
+nil means ignore them.  If you encounter fonts with bogus
 UNDERLINE_POSITION font properties, for example 7x13 on XFree prior
 to 4.1, set this to nil.  */);
   x_use_underline_position_properties = 1;