patch 8.1.1086: too many curly braces

Problem:    Too many curly braces.
Solution:   Remove curly braces where they are not needed. (Hirohito Higashi,
            closes #3982)
diff --git a/src/option.c b/src/option.c
index 8149521..d1fdcc1 100644
--- a/src/option.c
+++ b/src/option.c
@@ -6058,9 +6058,7 @@
 		|| sandbox != 0
 #endif
 		) && (options[opt_idx].flags & P_SECURE))
-    {
 	errmsg = e_secure;
-    }
 
     // Check for a "normal" directory or file name in some options.  Disallow a
     // path separator (slash and/or backslash), wildcards and characters that
@@ -6070,9 +6068,7 @@
 			    ? "/\\*?[|;&<>\r\n" : "/\\*?[<>\r\n")) != NULL)
 	  || ((options[opt_idx].flags & P_NDNAME)
 		    && vim_strpbrk(*varp, (char_u *)"*?[|;&<>\r\n") != NULL))
-    {
 	errmsg = e_invarg;
-    }
 
     /* 'term' */
     else if (varp == &T_NAME)
@@ -6722,9 +6718,7 @@
 		break;
 	    }
 	    if (*s == 'n')	/* name is always last one */
-	    {
 		break;
-	    }
 	    else if (*s == 'r') /* skip until next ',' */
 	    {
 		while (*++s && *s != ',')
@@ -8318,9 +8312,7 @@
 
     /* 'compatible' */
     if ((int *)varp == &p_cp)
-    {
 	compatible_set();
-    }
 
 #ifdef FEAT_LANGMAP
     if ((int *)varp == &p_lrm)
@@ -8547,9 +8539,11 @@
 
     /* when 'textauto' is set or reset also change 'fileformats' */
     else if ((int *)varp == &p_ta)
+    {
 	set_string_option_direct((char_u *)"ffs", -1,
 				 p_ta ? (char_u *)DFLT_FFS_VIM : (char_u *)"",
 						     OPT_FREE | opt_flags, 0);
+    }
 
     /*
      * When 'lisp' option changes include/exclude '-' in