update viewport variable with new underscore format

Change-Id: I68d9e4a57273d86adb9fa2721dc2ce1dbe3ce937
diff --git a/docs/html/design/index.jd b/docs/html/design/index.jd
index c687f33..7c7c5d9 100644
--- a/docs/html/design/index.jd
+++ b/docs/html/design/index.jd
@@ -1,5 +1,5 @@
 page.title=Design
-page.viewport-width=970
+page.viewport_width=970
 header.hide=1
 footer.hide=1
 @jd:body
diff --git a/docs/html/develop/index.jd b/docs/html/develop/index.jd
index 083b428..eb28da8 100644
--- a/docs/html/develop/index.jd
+++ b/docs/html/develop/index.jd
@@ -1,6 +1,6 @@
 fullpage=true
 page.title=Develop
-page.viewport-width=970
+page.viewport_width=970
 header.hide=1
 carousel=1
 tabbedList=1
diff --git a/docs/html/distribute/index.jd b/docs/html/distribute/index.jd
index d2534b9..6c6e113 100644
--- a/docs/html/distribute/index.jd
+++ b/docs/html/distribute/index.jd
@@ -1,5 +1,5 @@
 page.title=Distribute Apps
-page.viewport-width=970
+page.viewport_width=970
 header.hide=1
 
 @jd:body
diff --git a/docs/html/index.jd b/docs/html/index.jd
index d645246..99a469a 100644
--- a/docs/html/index.jd
+++ b/docs/html/index.jd
@@ -1,5 +1,5 @@
 fullpage=true
-page.viewport-width=970
+page.viewport_width=970
 no_footer_links=true
 carousel=true
 excludeFromSuggestions=true
diff --git a/docs/html/wear/index.jd b/docs/html/wear/index.jd
index b977554..a6a6460 100644
--- a/docs/html/wear/index.jd
+++ b/docs/html/wear/index.jd
@@ -1,5 +1,5 @@
 page.title=Android Wear
-page.viewport-width=970
+page.viewport_width=970
 fullpage=true
 no_footer_links=true
 page.customHeadTag=<link rel="stylesheet" type="text/css" href="/wear/css/wear.css">