core: fix typos in many comments and some strings

src/plugins/guile/weechat-guile-api.c

@@ -131,7 +131,7 @@ weechat_guile_api_scm_to_string (SCM str,
 }
 
 /*
- * Frees all alloacated strings in "guile_strings".
+ * Frees all allocated strings in "guile_strings".
  */
 
 void

src/plugins/guile/weechat-guile.c

@@ -969,7 +969,7 @@ weechat_plugin_init (struct t_weechat_plugin *plugin, int argc, char *argv[])
     plugin_script_display_short_list (weechat_guile_plugin,
                                       guile_scripts);
 
-    /* init ok */
+    /* init OK */
     return WEECHAT_RC_OK;
 }