improve old comments, cosmetic changes

src/d_deh.c

@@ -2762,9 +2762,11 @@ static void deh_procCheat(DEHFILE *fpin, char *line) // done
                 if (!strcasecmp(key, cheat[ix].deh_cheat)) // found the cheat, ignored case
                 {
                     // replace it but don't overflow it.  Use current length as
-                    // limit. Ty 03/13/98 - add 0xff code Deal with the fact
-                    // that the cheats in deh files are extended with character
-                    // 0xFF to the original cheat length, which we don't do.
+                    // limit.
+                    // Ty 03/13/98 - add 0xff code
+                    // Deal with the fact that the cheats in deh files are
+                    // extended with character 0xFF to the original cheat
+                    // length, which we don't do.
                     for (iy = 0; strval[iy]; iy++)
                     {
                         strval[iy] = (strval[iy] == (char)0xff) ? '\0' : strval[iy];
@@ -2779,10 +2781,10 @@ static void deh_procCheat(DEHFILE *fpin, char *line) // done
                         ++p;
                     }
                     // Ty 03/16/98 - change to use a strdup and orphan the
-                    // original Also has the advantage of allowing length
-                    // changes.
+                    // original.
+                    // Also has the advantage of allowing length changes.
                     // strncpy(cheat[iy].cheat,p,strlen(cheat[iy].cheat));
-
+                    //
                     // killough 9/12/98: disable cheats which are prefixes of
                     // this one
                     for (int i = 0; cheat[i].cheat; i++)
@@ -3464,7 +3466,7 @@ static void lfstrip(char *s) // strip the \r and/or \n off of a line
     char *p = s + strlen(s);
     while (p > s && (*--p == '\r' || *p == '\n'))
     {
-        *p = 0;
+        *p = '\0';
     }
 }