loplugin:stringadd simplify some *StringBuffer operations

pulled from a larger patch which I created with a more permissive
variant of this plugin

Change-Id: I7abf1f3f09e84703b6e0e52fe9587dff691b2187
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/114875
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 2 insertions, 10 deletions

diff --git a/sdext/source/pdfimport/misc/pdfihelper.cxx b/sdext/source/pdfimport/misc/pdfihelper.cxx
index bd29d406b1be..8268be6b9d46 100644
--- a/sdext/source/pdfimport/misc/pdfihelper.cxx
+++ b/sdext/source/pdfimport/misc/pdfihelper.cxx
@@ -107,20 +107,12 @@ OUString pdfi::getPercentString(double value)
 
 OUString pdfi::unitMMString( double fMM )
 {
-    OUStringBuffer aBuf( 32 );
-    aBuf.append( rtl_math_round( fMM, 2, rtl_math_RoundingMode_Floor ) );
-    aBuf.append( "mm" );
-
-    return aBuf.makeStringAndClear();
+    return OUString::number(rtl_math_round( fMM, 2, rtl_math_RoundingMode_Floor )) + "mm";
 }
 
 OUString pdfi::convertPixelToUnitString( double fPix )
 {
-    OUStringBuffer aBuf( 32 );
-    aBuf.append( rtl_math_round( convPx2mm( fPix ), 2, rtl_math_RoundingMode_Floor ) );
-    aBuf.append( "mm" );
-
-    return aBuf.makeStringAndClear();
+    return OUString::number( rtl_math_round( convPx2mm( fPix ), 2, rtl_math_RoundingMode_Floor ) ) + "mm";
 }