__ini_value: change empty value check

Change the short-circuit check for an empty value to a more structual
approach. This might be better for the code or not ..

cdist/conf/type/__ini_value/files/base.awk

@@ -66,12 +66,8 @@ found {print; next}
 # main loop (til the line was found)
 !found {
     line = trim($0)
-    # short curcit on empty lines
-    if(line == "") {
-        push_line()
-        next
-    }
-
+    # process if the line is not empty (or only contains spaces)
+    if(line != "") {
         # check for a ini section
         if(substr(line, 1, 1) == "[" && substr(line, length(line), 1) == "]") {
             is_section = 1
@@ -120,6 +116,7 @@ found {print; next}
                 }
             }
         }
+    }
 
     # works cause no next statement from above *structual programming*
     push_line()