Minor wording change: problems => challenges.

pgbackrest · Apr 17, 2016 · 7bdfa78 · 7bdfa78
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diff --git a/README.md b/README.md
@@ -4,7 +4,7 @@
 
 pgBackRest aims to be a simple, reliable backup and restore system that can seamlessly scale up to the largest databases and workloads.
 
-Instead of relying on traditional backup tools like tar and rsync, pgBackRest implements all backup features internally and uses a custom protocol for communicating with remote systems. Removing reliance on tar and rsync allows for better solutions to database-specific backup problems. The custom remote protocol allows for more flexibility and limits the types of connections that are required to perform a backup which increases security.
+Instead of relying on traditional backup tools like tar and rsync, pgBackRest implements all backup features internally and uses a custom protocol for communicating with remote systems. Removing reliance on tar and rsync allows for better solutions to database-specific backup challenges. The custom remote protocol allows for more flexibility and limits the types of connections that are required to perform a backup which increases security.
 
 ## Features
 

diff --git a/doc/xml/index.xml b/doc/xml/index.xml
@@ -26,7 +26,7 @@
 
         <p><backrest/> aims to be a simple, reliable backup and restore system that can seamlessly scale up to the largest databases and workloads.</p>
 
-        <p>Instead of relying on traditional backup tools like tar and rsync, <backrest/> implements all backup features internally and uses a custom protocol for communicating with remote systems.  Removing reliance on tar and rsync allows for better solutions to database-specific backup problems.  The custom remote protocol allows for more flexibility and limits the types of connections that are required to perform a backup which increases security.</p>
+        <p>Instead of relying on traditional backup tools like tar and rsync, <backrest/> implements all backup features internally and uses a custom protocol for communicating with remote systems.  Removing reliance on tar and rsync allows for better solutions to database-specific backup challenges.  The custom remote protocol allows for more flexibility and limits the types of connections that are required to perform a backup which increases security.</p>
     </section>
 
     <section id="features">