diff --git a/cfg/std.cfg b/cfg/std.cfg
index ec2154f5a..148c7c6c1 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -27,21 +27,21 @@
         <arg nr="2"><not-uninit/><not-bool/><valid>0-</valid></arg>
         <arg nr="3"><not-null/><not-uninit/></arg>
   </function>
-  <function name="fsetpos"> 
-        <noreturn>false</noreturn> 
-        <leak-ignore/> 
+  <function name="fsetpos">
+        <noreturn>false</noreturn>
+        <leak-ignore/>
         <arg nr="1"><not-null/><not-uninit/></arg>
         <arg nr="2"><not-null/><not-uninit/></arg>
   </function>
-  <function name="fputc"> 
-       <noreturn>false</noreturn> 
-       <leak-ignore/> 
+  <function name="fputc">
+       <noreturn>false</noreturn>
+       <leak-ignore/>
        <arg nr="1"><not-null/><not-uninit/><not-bool/><valid>0-</valid></arg>
        <arg nr="2"><not-null/><not-uninit/></arg>
   </function>
-  <function name="fputs"> 
-       <noreturn>false</noreturn> 
-       <leak-ignore/> 
+  <function name="fputs">
+       <noreturn>false</noreturn>
+       <leak-ignore/>
        <arg nr="1"><not-null/><not-uninit/></arg>
        <arg nr="2"><not-null/><not-uninit/></arg>
   </function>
diff --git a/runastyle b/runastyle
index f3c059d25..e8e5dbf26 100755
--- a/runastyle
+++ b/runastyle
@@ -35,3 +35,5 @@ astyle $style $options --recursive "samples/*.cpp"
 # Convert tabs to spaces.. even in strings
 # sed -i "s/\t/ /g" test/test*.cpp
 
+# strip useless whitespaces from config files
+sed -i "s/\ $//" cfg/*