13 files changed, 12 insertions, 13 deletions
diff --git a/sci-libs/arpack/metadata.xml b/sci-libs/arpack/metadata.xml
index c38e598bbdac..f9395d1b28a4 100644
--- a/sci-libs/arpack/metadata.xml
+++ b/sci-libs/arpack/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <maintainer type="project">
diff --git a/sci-libs/avogadrolibs/metadata.xml b/sci-libs/avogadrolibs/metadata.xml
index 8e2ba3ed6642..b1ec1f75eb7d 100644
--- a/sci-libs/avogadrolibs/metadata.xml
+++ b/sci-libs/avogadrolibs/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="project">
diff --git a/sci-libs/flann/metadata.xml b/sci-libs/flann/metadata.xml
index 3238be55ea69..176a3633b941 100644
--- a/sci-libs/flann/metadata.xml
+++ b/sci-libs/flann/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <maintainer type="project">
diff --git a/sci-libs/indilib/metadata.xml b/sci-libs/indilib/metadata.xml
index 5d5d0f3c56e4..6ceac2d83b89 100644
--- a/sci-libs/indilib/metadata.xml
+++ b/sci-libs/indilib/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="project">
diff --git a/sci-libs/libqalculate/metadata.xml b/sci-libs/libqalculate/metadata.xml
index 92e29b80e703..5a79485a6ded 100644
--- a/sci-libs/libqalculate/metadata.xml
+++ b/sci-libs/libqalculate/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <maintainer type="project">
diff --git a/sci-libs/libsc/metadata.xml b/sci-libs/libsc/metadata.xml
index 18bfaa1e5479..20badba13add 100644
--- a/sci-libs/libsc/metadata.xml
+++ b/sci-libs/libsc/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="person">
diff --git a/sci-libs/metadata.xml b/sci-libs/metadata.xml
index de2ee5e82dd2..b543f7c4216b 100644
--- a/sci-libs/metadata.xml
+++ b/sci-libs/metadata.xml
@@ -30,4 +30,3 @@
 		Kategoria sci-libs zawiera biblioteki związane z programami naukowymi.
 	</longdescription>
 </catmetadata>
-
diff --git a/sci-libs/nanoflann/metadata.xml b/sci-libs/nanoflann/metadata.xml
index 7fcd5763ce84..55ff474ea242 100644
--- a/sci-libs/nanoflann/metadata.xml
+++ b/sci-libs/nanoflann/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="person">
diff --git a/sci-libs/netcdf/metadata.xml b/sci-libs/netcdf/metadata.xml
index f2b51139d22c..b7e0ce8e79ef 100644
--- a/sci-libs/netcdf/metadata.xml
+++ b/sci-libs/netcdf/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <maintainer type="project">
diff --git a/sci-libs/o2scl/metadata.xml b/sci-libs/o2scl/metadata.xml
index 12a668d82eb1..e560f8975f9c 100644
--- a/sci-libs/o2scl/metadata.xml
+++ b/sci-libs/o2scl/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <maintainer type="project">
diff --git a/sci-libs/p4est/metadata.xml b/sci-libs/p4est/metadata.xml
index a7e30547b056..35ac42b0102a 100644
--- a/sci-libs/p4est/metadata.xml
+++ b/sci-libs/p4est/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="person">
diff --git a/sci-libs/spglib/metadata.xml b/sci-libs/spglib/metadata.xml
index d0522ae93c48..da36ecbfcd6a 100644
--- a/sci-libs/spglib/metadata.xml
+++ b/sci-libs/spglib/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="project">
diff --git a/sci-libs/symengine/metadata.xml b/sci-libs/symengine/metadata.xml
index 759e5c9c0a48..53c407a4e64b 100644
--- a/sci-libs/symengine/metadata.xml
+++ b/sci-libs/symengine/metadata.xml
@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='UTF-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
   <maintainer type="project">