Skipping minor entries while producing generic CHANGES.

Currently we consider any changes with revision other than 1 as
packages-specific, thus there is no need to include such entries
to the generic Unit change log.

docs/changes.xsls

@@ -63,6 +63,9 @@ X:template = "changes" {
     X:var apply = { !string_in_list(list="@apply", string="$pkgname") }
     X:var pkgname_ = { !beautify(pkgname="$pkgname") }
 
+    X:choose {
+    X:when "$pkgname='unit' and $format='generic' and @rev!=1" {}
+    X:otherwise {
     X:if "$apply=$pkgname" {
 
     X:if "$format='generic'" {
@@ -113,6 +116,8 @@ X:template = "changes" {
     }
     }
     }
+    }
+}
 
 
 X:template = "change" {

docs/changes.xslt

@@ -64,6 +64,9 @@
     <xsl:variable name="apply"> <xsl:call-template name="string_in_list"><xsl:with-param select="@apply" name="list"/><xsl:with-param select="$pkgname" name="string"/></xsl:call-template></xsl:variable>
     <xsl:variable name="pkgname_"> <xsl:call-template name="beautify"><xsl:with-param select="$pkgname" name="pkgname"/></xsl:call-template></xsl:variable>
 
+    <xsl:choose>
+    <xsl:when test="$pkgname='unit' and $format='generic' and @rev!=1"/>
+    <xsl:otherwise>
     <xsl:if test="$apply=$pkgname">
 
     <xsl:if test="$format='generic'">
@@ -113,6 +116,8 @@
         <xsl:text>&#10;</xsl:text>
     </xsl:if>
     </xsl:if>
+    </xsl:otherwise>
+    </xsl:choose>
 </xsl:template>