Fix typos in comments in libretro

libretro/LoadSeg.s

@@ -14,9 +14,9 @@ PATCHEDLOADSEG:
 # Stack now:
 #   (arguments for function)
 #   (return address)
-#   (don't care any more -- address in jt entry)
+#   (don't care anymore -- address in jt entry)
 #   (saved registers)
-#   (4 bvtes of space for return value)
+#   (4 bytes of space for return value)
 #   (address in jt entry)
 
     jsr RETRO68LOADSEGMENT

libretro/syscalls.c

@@ -90,7 +90,7 @@ int _open_r(struct _reent *reent, const char* name, int flags, int mode)
     // Carbon has the new, sane version.
     c2pstrcpy(pname,name);
 #else
-    // It is also availble in various glue code libraries and
+    // It is also available in various glue code libraries and
     // in some versions of InterfaceLib, but it's confusing.
     // Using the inplace variant, c2pstr, isn't much better than
     // doing things by hand:
@@ -248,7 +248,7 @@ int _wait_r(struct _reent *reent, int *wstatus)
 int _gettimeofday_r(struct _reent *reent, struct timeval *tp, void *__tz)
 {
     /* Classic MacOS's GetDateTime function returns an integer.
-     * TickCount() has a slightly higher resolution, but is independend of the real-time clock.
+     * TickCount() has a slightly higher resolution, but is independent of the real-time clock.
      */
     unsigned long secs;
     GetDateTime(&secs);