fix grammar mistakes

Author: gregor-j

src/Config/IConfigCommon.php

@@ -68,7 +68,7 @@ interface IConfigCommon extends IConfiguration
 
     /**
      * Only needed it if you want to connect to a non-Unicode backend using a
-     * non-ISO-Latin-1 user name or password. The RFC library will then use that
+     * non-ISO-Latin-1 username or password. The RFC library will then use that
      * codepage for the initial handshake, thus preserving the characters in
      * username/password.
      */
@@ -161,7 +161,7 @@ public function setTrace(int $trace): IConfigCommon;
 
     /**
      * Only needed it if you want to connect to a non-Unicode backend using a
-     * non-ISO-Latin-1 user name or password. The RFC library will then use that
+     * non-ISO-Latin-1 username or password. The RFC library will then use that
      * codepage for the initial handshake, thus preserving the characters in
      * username/password.
      * @return int|null The codepage or NULL in case the codepage hasn't been set.
@@ -170,7 +170,7 @@ public function getCodepage(): ?int;
 
     /**
      * Only needed it if you want to connect to a non-Unicode backend using a
-     * non-ISO-Latin-1 user name or password. The RFC library will then use that
+     * non-ISO-Latin-1 username or password. The RFC library will then use that
      * codepage for the initial handshake, thus preserving the characters in
      * username/password.
      * @param  int  $codepage The codepage.

src/IFunction.php

@@ -128,7 +128,7 @@ public function getApi(): IApi;
      * Set the SAP remote function API (e.g. from cache).
      *
      * By setting the API, it will not be queried from the SAP remote system when
-     * calling getApi(). Instead getApi() will return whatever has been set using
+     * calling getApi(). Instead, getApi() will return whatever has been set using
      * this method.
      *
      * @param  IApi  $api