fix warnings when building reference manual in Sage 4.1.2.alpha4

[sagetrac-mvngu]

On a fresh compiled Sage 4.1.2.alpha4, building the HTML version of the reference manual resulted in the following warnings:

WARNING: /scratch/mvngu/release/sage-4.1.2.alpha4/local/lib/python2.6/site-packages/sage/numerical/knapsack.py:docstring of sage.numerical.knapsack.knapsack:69: (WARNING/2) Block quote ends without a blank line; unexpected unindent.
WARNING: /scratch/mvngu/release/sage-4.1.2.alpha4/local/lib/python2.6/site-packages/sage/rings/polynomial/pbori.so:docstring of sage.rings.polynomial.pbori.MonomialFactory:1: (WARNING/2) Inline literal start-string without end-string.
WARNING: /scratch/mvngu/release/sage-4.1.2.alpha4/local/lib/python2.6/site-packages/sage/rings/polynomial/pbori.so:docstring of sage.rings.polynomial.pbori.PolynomialFactory:1: (WARNING/2) Inline literal start-string without end-string.
WARNING: /scratch/mvngu/release/sage-4.1.2.alpha4/local/lib/python2.6/site-packages/sage/rings/polynomial/pbori.so:docstring of sage.rings.polynomial.pbori.VariableFactory:1: (WARNING/2) Inline literal start-string without end-string.

This should be fixed before releasing the upcoming rc0. I have made this ticket a blocker for 4.1.2. The HTML version of the reference manual should build without any warnings. See also ticket #6916 for a patch to fix the first warning. The remaining three warnings are due to #6177.

CC: @malb @sagetrac-PolyBoRi

Component: documentation

Author: Minh Van Nguyen

Reviewer: William Stein

Merged: Sage 4.1.2.rc0

Issue created by migration from https://trac.sagemath.org/ticket/7064

[sagetrac-mvngu]

based on Sage 4.1.2.alpha4

[sagetrac-mvngu]

Author: Minh Van Nguyen

[sagetrac-mvngu]

comment:1

Attachment: trac_7064-fix-warnings.patch.gz

[sagetrac-mvngu]

Reviewer: William Stein

[sagetrac-mvngu]

Merged: Sage 4.1.2.rc0