Typo fix in error messages from swigarch.i

Author: wsfulton

Lib/swigarch.i

@@ -42,7 +42,7 @@
 #include <limits.h>
 #endif
 #if (__WORDSIZE == 64) || (LONG_MAX != INT_MAX)
-# error "SWIG wrapped code invalid in 64 bit architecture, regenarete code using -DSWIGWORDSIZE64"
+# error "SWIG wrapped code invalid in 64 bit architecture, regenerate code using -DSWIGWORDSIZE64"
 #endif
 %}
 #endif
@@ -54,7 +54,7 @@
 #include <limits.h>
 #endif
 #if (__WORDSIZE == 32) || (LONG_MAX == INT_MAX)
-# error "SWIG wrapped code invalid in 32 bit architecture, regenarete code using -DSWIGWORDSIZE32"
+# error "SWIG wrapped code invalid in 32 bit architecture, regenerate code using -DSWIGWORDSIZE32"
 #endif
 %}
 #endif