gnu: Add comma after “i.e.” in descriptions.

* gnu/packages/bioconductor.scm (r-anota)[description]: Add comma after
“i.e.”.
* gnu/packages/code.scm (xenon)[description]: Same.
* gnu/packages/cran.scm (r-crosstalk)[description]: Same.
* gnu/packages/python-xyz.scm (python-radon)[description]: Same.
* gnu/packages/statistics.scm (r-logspline)[description]: Same.
* gnu/packages/suckless.scm (tabbed)[description]: Same.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/bioconductor.scm

@@ -8834,7 +8834,7 @@ study various biological conditions.  The output from such analysis is both
 the mRNA level (e.g. cytosolic mRNA level) and the level of mRNA actively
 involved in translation (the actively translating mRNA level) for each mRNA.
 The standard analysis of such data strives towards identifying differential
-translational between two or more sample classes - i.e.  differences in
+translational between two or more sample classes - i.e., differences in
 actively translated mRNA levels that are independent of underlying differences
 in cytosolic mRNA levels.  This package allows for such analysis using partial
 variances and the random variance model.  As 10s of thousands of mRNAs are

gnu/packages/code.scm

@@ -1067,7 +1067,7 @@ Using cscope, you can easily search for where symbols are used and defined.")
      "Xenon is a monitoring tool based on Radon.  It monitors code complexity.
 Ideally, @code{xenon} is run every time code is committed.  Through command
 line options, various thresholds can be set for the complexity of code.  It
-will fail (i.e.  it will exit with a non-zero exit code) when any of these
+will fail (i.e., it will exit with a non-zero exit code) when any of these
 requirements is not met.")
     (license license:expat)))
 

gnu/packages/cran.scm

@@ -3315,7 +3315,7 @@ punctuation.")
     (synopsis "Inter-widget interactivity for HTML widgets")
     (description
      "This package provides building blocks for allowing HTML widgets to
-communicate with each other, with Shiny or without (i.e.  static @code{.html}
+communicate with each other, with Shiny or without (i.e., static @code{.html}
 files).  It currently supports linked brushing and filtering.")
     (license license:expat)))
 

gnu/packages/python-xyz.scm

@@ -19659,7 +19659,7 @@ while only declaring the test-specific fields.")
      Supported metrics are:
      @itemize @bullet
      @item raw metrics: SLOC, comment lines, blank lines, &c.
-     @item Cyclomatic Complexity (i.e.  McCabe’s Complexity)
+     @item Cyclomatic Complexity (i.e., McCabe’s Complexity)
      @item Halstead metrics (all of them)
      @item the Maintainability Index (a Visual Studio metric)
      @end itemize")

gnu/packages/statistics.scm

@@ -6624,7 +6624,7 @@ or eta squared effect size.")
     (description
       "Contains routines for logspline density estimation.  The function
 @code{oldlogspline()} uses the same algorithm as the logspline package version
-1.0.x; i.e.  the Kooperberg and Stone (1992) algorithm (with an improved
+1.0.x; i.e., the Kooperberg and Stone (1992) algorithm (with an improved
 interface).  The recommended routine @code{logspline()} uses an algorithm from
 @url{doi:10.1214/aos/1031594728,Stone et al (1997)}.")
     (license license:asl2.0)))

gnu/packages/suckless.scm

@@ -122,7 +122,7 @@ terminal like @code{st}.")
     (synopsis "Tab interface for application supporting Xembed")
     (description "Tabbed is a generic tabbed frontend to xembed-aware
 applications.  It was originally designed for surf but also usable with many
-other applications, i.e. st, uzbl, urxvt and xterm.")
+other applications, i.e., st, uzbl, urxvt and xterm.")
     (license
      ;; Dual-licensed.
      (list