misc: fix typos in comments

Closes #2963

lib/http2.c

@@ -203,7 +203,7 @@ static bool http2_connisdead(struct connectdata *conn)
     dead = !Curl_connalive(conn);
     if(!dead) {
       /* This happens before we've sent off a request and the connection is
-         not in use by any other thransfer, there shouldn't be any data here,
+         not in use by any other transfer, there shouldn't be any data here,
          only "protocol frames" */
       CURLcode result;
       struct http_conn *httpc = &conn->proto.httpc;

lib/urlapi.c

@@ -628,7 +628,7 @@ static CURLUcode seturl(const char *url, CURLU *u, unsigned int flags)
 
   /* handle the file: scheme */
   if(url_has_scheme && strcasecompare(schemebuf, "file")) {
-    /* path has been allocated large anough to hold this */
+    /* path has been allocated large enough to hold this */
     strcpy(path, &url[5]);
 
     hostname = NULL; /* no host for file: URLs */

src/tool_urlglob.c

@@ -552,7 +552,7 @@ CURLcode glob_next_url(char **globbed, URLGlob *glob)
       }
     }
     if(carry) {         /* first pattern ptr has run into overflow, done! */
-      /* TODO: verify if this should actally return CURLE_OK. */
+      /* TODO: verify if this should actually return CURLE_OK. */
       return CURLE_OK; /* CURLE_OK to match previous behavior */
     }
   }

tests/data/test1208

@@ -40,7 +40,7 @@ s/^EPRT \|1\|(.*)/EPRT \|1\|/
 
 # This test doesn't send a QUIT because the main state machine in multi.c
 # triggers the timeout and sets the CURLE_OPERATION_TIMEDOUT error (28) for
-# which the FTP disconect code generically has to assume could mean the
+# which the FTP disconnect code generically has to assume could mean the
 # control the connection and thus it cannot send any command.
 <protocol>
 USER anonymous