Update help, check for mocp before using mocplay

plugins/nuke

@@ -99,7 +99,7 @@ handle_pdf() {
 }
 
 handle_audio() {
-    if which mocplay >/dev/null 2>&1; then
+    if which mocp >/dev/null 2>&1 && which mocplay >/dev/null 2>&1; then
         mocplay "${FPATH}" "opener" >/dev/null 2>&1
         exit 0
     elif which mpv >/dev/null 2>&1; then

src/nnn.c

@@ -3973,7 +3973,7 @@ static void show_help(const char *path)
 	       "9g ^A  Top%-18c. F5  Toggle hidden\n"
 	       "9G ^E  End%-21c0  Lock terminal\n"
 	       "9b ^/  Bookmark key%-12c,  Pin CWD\n"
-		"a1-4  Context 1-4%-8c(B)Tab  Cycle context\n"
+		"a1-4  Context 1-4%-7c(Sh)Tab  Cycle context\n"
 		  "c/  Filter%-17c^N  Nav-as-you-type toggle\n"
 		"aEsc  Exit prompt%-12c^L  Redraw/clear prompt\n"
 		  "c?  Help, conf%-14c+  Toggle proceed on open\n"