patch 8.2.4993: smart/C/lisp indenting is optional

Problem:    smart/C/lisp indenting is optional, which makes the code more
            complex, while it only reduces the executable size a bit.
Solution:   Graduate FEAT_CINDENT, FEAT_SMARTINDENT and FEAT_LISP.
diff --git a/src/version.c b/src/version.c
index 7cd8189..e9934a0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -152,11 +152,7 @@
 #else
 	"-channel",
 #endif
-#ifdef FEAT_CINDENT
 	"+cindent",
-#else
-	"-cindent",
-#endif
 #ifdef FEAT_CLIENTSERVER
 	"+clientserver",
 #else
@@ -334,11 +330,7 @@
 #else
 	"-linebreak",
 #endif
-#ifdef FEAT_LISP
 	"+lispindent",
-#else
-	"-lispindent",
-#endif
 	"+listcmds",
 	"+localmap",
 #ifdef FEAT_LUA
@@ -546,11 +538,7 @@
 #else
 	"-signs",
 #endif
-#ifdef FEAT_SMARTINDENT
 	"+smartindent",
-#else
-	"-smartindent",
-#endif
 #ifdef FEAT_SODIUM
 # ifdef DYNAMIC_SODIUM
 	"+sodium/dyn",
@@ -747,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4993,
+/**/
     4992,
 /**/
     4991,