Minor typo/grammar fixes

lib/gssapi/krb5/test_sequence.c

@@ -68,7 +68,7 @@ OM_uint32 pattern6[] = {
     50, 51, 52, 53, 54, 55, 56, 57, 58, 59
 };
 
-/* dont start at 0 */
+/* don't start at 0 */
 OM_uint32 pattern7[] = {
     11, 12, 13
 };

lib/hx509/cms.c

@@ -537,7 +537,7 @@ out:
  *
  * @param context A hx509 context.
  * @param flags flags to control the behavior.
- *    - HX509_CMS_EV_NO_KU_CHECK - Dont check KU on certificate
+ *    - HX509_CMS_EV_NO_KU_CHECK - Don't check KU on certificate
  *    - HX509_CMS_EV_ALLOW_WEAK - Allow weak crytpo
  *    - HX509_CMS_EV_ID_NAME - prefer issuer name and serial number
  * @param cert Certificate to encrypt the EnvelopedData encryption key

lib/hx509/print.c

@@ -234,7 +234,7 @@ validate_print(hx509_validate_ctx ctx, int flags, const char *fmt, ...)
 }
 
 /*
- * Dont Care, SHOULD critical, SHOULD NOT critical, MUST critical,
+ * Don't Care, SHOULD critical, SHOULD NOT critical, MUST critical,
  * MUST NOT critical
  */
 enum critical_flag { D_C = 0, S_C, S_N_C, M_C, M_N_C };

lib/kdfs/k5dfspag.c

@@ -274,7 +274,7 @@ int krb5_dfs_pag(context, flag, principal, luser)
 
    /* test if DFS is running or installed */
    if (krb5_dfs_getpag() == -2)
-     return(0); /* DFS not running, dont try */
+     return(0); /* DFS not running, don't try */
 
   if (pipe(fd) == -1)
      return(0);
@@ -305,7 +305,7 @@ int krb5_dfs_pag(context, flag, principal, luser)
 
   /* parent, wait for child to finish */
 
-  close(fd[1]);  /* dont need this end of pipe */
+  close(fd[1]);  /* don't need this end of pipe */
 
 /* #if defined(sgi) || defined(_sgi) */
   /* wait_status.w_status = 0; */