Use KC_KEYMAP for default-keymap

and remove obsolete explicit line-separator "\"

keyboards/ps2avrGB/keymaps/default/keymap.c

@@ -18,14 +18,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "ps2avrGB.h"
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-    KEYMAP( \
-        ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, PSCR,HOME,END, \
-        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC,     DEL, \
-        TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS,     INS, \
-        CAPS,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,ENT,           PGUP,\
-        LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,RSFT,          UP,  PGDN,\
-        LCTL,LALT,LGUI,          SPC,                     RGUI,RALT,RCTL,LEFT,DOWN,RGHT \
-    ),
+    KC_KEYMAP(
+        ESC, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, PSCR,HOME,END,
+        GRV, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSPC,     DEL,
+        TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSLS,     INS,
+        CAPS,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,ENT,           PGUP,
+        LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,RSFT,          UP,  PGDN,
+        LCTL,LALT,LGUI,          SPC,                     RGUI,RALT,RCTL,LEFT,DOWN,RGHT
+    )
 };
 
 const uint16_t PROGMEM fn_actions[] = {