[xkb] swap afnor spacebar for bépo's

config/xkb/symbols/custom

@@ -15,12 +15,15 @@ xkb_symbols "fr_afnor" {
     // new AFNOR azerty adapted for programming and use with an ANSI keyboard
     include "fr(afnor)"
 
-    key <AE07>	{[ leftsinglequotemark,      7,           grave, dead_macron ]}; // ‘ 7 `
-    key <AE12>	{[ asciicircum, dead_diaeresis, dead_circumflex,  dead_caron ]}; // ^
-    key <AB06>	{[           n,              N,      asciitilde,  dead_tilde ]}; // n N ~
+    key <AE07>	{[ leftsinglequotemark,      7,           grave,      dead_macron ]}; // ‘ 7 `
+    key <AE12>	{[ asciicircum, dead_diaeresis, dead_circumflex,       dead_caron ]}; // ^
+    key <AB06>	{[           n,              N,      asciitilde,       dead_tilde ]}; // n N ~
 
-    key <AD04>	{[           r,              R,      registered,   copyright ]}; // r R ® ©
+    key <AD04>	{[           r,              R,      registered,        copyright ]}; // r R ® ©
 
-    key <AB01>  { [w, W,    less,    lessthanequal ] }; // w W < ≤
-    key <AB02>  { [x, X, greater, greaterthanequal ] }; // x X > ≥
+    key <AB01>	{[           w,              W,            less,    lessthanequal ]}; // w W < ≤
+    key <AB02>	{[           x,              X,         greater, greaterthanequal ]}; // x X > ≥
+
+    // Space bar borrowed from bépo
+    key <SPCE>	{[       space,   nobreakspace,      underscore,            U202F ]}; // ␣ (espace insécable) _ (espace insécable fin)
 };