Use headlinese for added functions, per request

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/ChangeLog.d/add_final_delay_accessor b/ChangeLog.d/add_final_delay_accessor
index 5e7844d..4b8117f 100644
--- a/ChangeLog.d/add_final_delay_accessor
+++ b/ChangeLog.d/add_final_delay_accessor
@@ -1,4 +1,4 @@
 Features
-   * Add the function mbedtls_timing_get_final_delay() to access the private
+   * Add function mbedtls_timing_get_final_delay() to access the private
      final delay field in an mbedtls_timing_delay_context, as requested in
      #5183.
diff --git a/ChangeLog.d/mbedtls_ecp_export.txt b/ChangeLog.d/mbedtls_ecp_export.txt
index fb3e055..5dce5b4 100644
--- a/ChangeLog.d/mbedtls_ecp_export.txt
+++ b/ChangeLog.d/mbedtls_ecp_export.txt
@@ -1,3 +1,3 @@
 Features
-   * Add a function mbedtls_ecp_export() to export ECP key pair parameters.
+   * Add function mbedtls_ecp_export() to export ECP key pair parameters.
      Fixes #4838.
diff --git a/ChangeLog.d/mbedtls_tlsver_enum.txt b/ChangeLog.d/mbedtls_tlsver_enum.txt
index 529083e..c027ab7 100644
--- a/ChangeLog.d/mbedtls_tlsver_enum.txt
+++ b/ChangeLog.d/mbedtls_tlsver_enum.txt
@@ -5,6 +5,6 @@
      mbedtls_ssl_conf_min_tls_version().
 
 Features
-   * The new functions mbedtls_ssl_conf_max_tls_version() and
-     mbedtls_ssl_conf_min_tls_version() use a single value to specify
+   * Add functions mbedtls_ssl_conf_max_tls_version() and
+     mbedtls_ssl_conf_min_tls_version() that use a single value to specify
      the protocol version.
diff --git a/ChangeLog.d/md_info_from_ctx.txt b/ChangeLog.d/md_info_from_ctx.txt
index 8cee593..aa61e1a 100644
--- a/ChangeLog.d/md_info_from_ctx.txt
+++ b/ChangeLog.d/md_info_from_ctx.txt
@@ -1,3 +1,3 @@
 Features
-   * The new function mbedtls_md_info_from_ctx() recalls the message digest
+   * Add function mbedtls_md_info_from_ctx() to recall the message digest
      information that was used to set up a message digest context.