Fix double space in figure captions

config/thesis_commands.tex

@@ -36,7 +36,7 @@
     \begin{figure}[#2]
         \centering%
         \includegraphics[width=#1\linewidth]{#3}%
-        \caption[#4]{#4\IfValueTF{#5}{ #5}}% voluntary space before the subfig titles
+        \caption[#4]{#4#5}
         \label{fig:#3}%
     \end{figure}%
 }