doc: fix typos for doubled words [skip ci]
"more more" is one place where we don't need more.
Fixes
@@ -1280,7 +1280,7 @@ them for the default behaviour for each platform.
This function prints its argument to stdout.
-*(since 0.54.0)* Can take more more than one argument that will be separated by
+*(since 0.54.0)* Can take more than one argument that will be separated by
space.
### warning()
@@ -1293,7 +1293,7 @@ space.
This function prints its argument to stdout prefixed with WARNING:.
-*(since 0.54.0)* Can take more more than one argument that will be separated by
+*(since 0.54.0)* Can take more than one argument that will be separated by
space.
### summary()
