Fix typos

configure.ac

@@ -637,7 +637,7 @@ AS_IF([test "x$enable_pytest" = "xyes"],
     )]
 )
 
-# "check" is replaced by the rsult ("yes" or "no")
+# "check" is replaced by the result ("yes" or "no")
 enable_pytest=$have_pytest
 
 AC_SUBST([enable_pytest])

include/hamlib/rig.h

@@ -2785,7 +2785,7 @@ struct rig_state {
     int twiddle_timeout;        /*!< timeout to resume from twiddling */
     // uplink allows gpredict to behave better by no reading the uplink VFO
     int uplink;                 /*!< uplink=1 will not read Sub, uplink=2 will not read Main */
-    struct rig_cache_deprecated cache; // Only here for backward compatability
+    struct rig_cache_deprecated cache; // Only here for backward compatibility
     int vfo_opt;                /*!< Is -o switch turned on? */
     int auto_power_on;          /*!< Allow Hamlib to power on rig
                                    automatically if supported */