It's abs_diff, not abs-diff

sdk/1.0/docs/man/integerFunctions.xml

diff --git a/sdk/1.0/docs/man/integerFunctions.xml b/sdk/1.0/docs/man/integerFunctions.xml
index cfc41bc..3829e5d 100644
--- a/sdk/1.0/docs/man/integerFunctions.xml
+++ b/sdk/1.0/docs/man/integerFunctions.xml
@@ -43,7 +43,7 @@
 		</row>
 		<row>
 			<entry><citerefentry href="abs">
-				<refentrytitle>abs-diff</refentrytitle>
+				<refentrytitle>abs_diff</refentrytitle>
 			</citerefentry></entry>
 			<entry>|<varname>x</varname>-<varname>y</varname>| without modulo overflow</entry>
 		</row>

sdk/1.1/docs/man/integerFunctions.xml

diff --git a/sdk/1.1/docs/man/integerFunctions.xml b/sdk/1.1/docs/man/integerFunctions.xml
index e6db39f..b13eb6e 100644
--- a/sdk/1.1/docs/man/integerFunctions.xml
+++ b/sdk/1.1/docs/man/integerFunctions.xml
@@ -45,7 +45,7 @@
         </row>
         <row>
             <entry><citerefentry href="abs">
-                <refentrytitle>abs-diff</refentrytitle>
+                <refentrytitle>abs_diff</refentrytitle>
             </citerefentry></entry>
             <entry>|<varname>x</varname>-<varname>y</varname>| without modulo overflow</entry>
         </row>

sdk/1.2/docs/man/integerFunctions.xml

diff --git a/sdk/1.2/docs/man/integerFunctions.xml b/sdk/1.2/docs/man/integerFunctions.xml
index d694903..d496825 100644
--- a/sdk/1.2/docs/man/integerFunctions.xml
+++ b/sdk/1.2/docs/man/integerFunctions.xml
@@ -48,7 +48,7 @@
 
         <row>
             <entry><citerefentry href="abs">
-                <refentrytitle>abs-diff</refentrytitle>
+                <refentrytitle>abs_diff</refentrytitle>
             </citerefentry></entry>
             <entry>|<varname>x</varname>-<varname>y</varname>| without modulo overflow</entry>
         </row>