Add an extra layer of quoting to ltmain.sh sanity check.

--- a/configure	2005-05-07 14:19:31.000000000 +0200
+++ b/configure	2015-02-10 11:16:32.456146934 +0100
@@ -6266,7 +6266,7 @@
   exit 1
 fi
 gentoo_lt_version="1.5.16"
-gentoo_ltmain_version=`grep '^[:space:]*VERSION=' $ltmain | sed -e 's|^[:space:]*VERSION=||'`
+gentoo_ltmain_version=`grep '^[[:space:]]*VERSION=' $ltmain | sed -e 's|^[[:space:]]*VERSION=||'`
 if test "$gentoo_lt_version" != "$gentoo_ltmain_version"; then
   echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
--- a/aclocal.m4	2005-05-07 14:19:25.000000000 +0200
+++ b/aclocal.m4	2015-02-10 11:16:15.352030318 +0100
@@ -246,7 +246,7 @@
   exit 1
 fi
 gentoo_lt_version="1.5.16"
-gentoo_ltmain_version=`grep '^[[:space:]]*VERSION=' $ltmain | sed -e 's|^[[:space:]]*VERSION=||'`
+gentoo_ltmain_version=`[grep '^[[:space:]]*VERSION=' $ltmain | sed -e 's|^[[:space:]]*VERSION=||']`
 if test "$gentoo_lt_version" != "$gentoo_ltmain_version"; then
   AC_MSG_RESULT(no)
   echo
--- a/libcpufreq/configure	2005-05-07 14:19:31.000000000 +0200
+++ b/libcpufreq/configure	2015-02-10 11:16:32.456146934 +0100
@@ -6266,7 +6266,7 @@
   exit 1
 fi
 gentoo_lt_version="1.5.16"
-gentoo_ltmain_version=`grep '^[:space:]*VERSION=' $ltmain | sed -e 's|^[:space:]*VERSION=||'`
+gentoo_ltmain_version=`grep '^[[:space:]]*VERSION=' $ltmain | sed -e 's|^[[:space:]]*VERSION=||'`
 if test "$gentoo_lt_version" != "$gentoo_ltmain_version"; then
   echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
--- a/libcpufreq/aclocal.m4	2005-05-07 14:19:25.000000000 +0200
+++ b/libcpufreq/aclocal.m4	2015-02-10 11:16:15.352030318 +0100
@@ -246,7 +246,7 @@
   exit 1
 fi
 gentoo_lt_version="1.5.16"
-gentoo_ltmain_version=`grep '^[[:space:]]*VERSION=' $ltmain | sed -e 's|^[[:space:]]*VERSION=||'`
+gentoo_ltmain_version=`[grep '^[[:space:]]*VERSION=' $ltmain | sed -e 's|^[[:space:]]*VERSION=||']`
 if test "$gentoo_lt_version" != "$gentoo_ltmain_version"; then
   AC_MSG_RESULT(no)
   echo
m>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=5b19776e055c7033f72fd7291711294cc276ab1f'>root</a>/<a href='/guix/log/gnu?id=5b19776e055c7033f72fd7291711294cc276ab1f'>gnu</a>/<a href='/guix/log/gnu/bootloader?id=5b19776e055c7033f72fd7291711294cc276ab1f'>bootloader</a>/<a href='/guix/log/gnu/bootloader/u-boot.scm?id=5b19776e055c7033f72fd7291711294cc276ab1f'>u-boot.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/bootloader/u-boot.scm?id=5b19776e055c7033f72fd7291711294cc276ab1f&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-01-22 22:53:08 +0100'>2018-01-22</span></td><td><a href='/guix/commit/gnu/bootloader/u-boot.scm?id=c55c6985948b12a39cd5805bde95db9a80def3ba'>system: Add A20 OLinuXino LIME installer.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2018-01-20 22:50:56 +0100'>2018-01-20</span></td><td><a href='/guix/commit/gnu/bootloader/u-boot.scm?id=84ee33787e011fbf7d04eed1bc2d0765cef57b52'>system: Add Nintendo NES Classic Edition installer.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2018-01-20 22:50:55 +0100'>2018-01-20</span></td><td><a href='/guix/commit/gnu/bootloader/u-boot.scm?id=a7bb327e3c457cd99710c92b5d09f76b7ab45000'>system: Add A20 OLinuXino MICRO installer.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2018-01-20 22:50:55 +0100'>2018-01-20</span></td><td><a href='/guix/commit/gnu/bootloader/u-boot.scm?id=4b9e9abb36db3c658cd915bcc580dc3da8938863'>system: Add A20 OLinuXino LIME2 installer.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2018-01-20 20:33:10 +0100'>2018-01-20</span></td><td><a href='/guix/commit/gnu/bootloader/u-boot.scm?id=30aeb846d7516d534aebeee76be4a920195e8d50'>system: Add Banana Pi M2 Ultra installer.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2017-12-15 12:15:15 +0100'>2017-12-15</span></td><td><a href='/guix/commit/gnu/bootloader/u-boot.scm?id=ceb3952764e49400d4419fea64a9201a32dad3de'>system: Add BeagleBone Black installer.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2017-07-15 12:53:37 +0200'>2017-07-15</span></td><td><a href='/guix/commit/gnu/bootloader/u-boot.scm?id=8d858010b373485dcd999c30ec58bede53bd7ecd'>bootloader: Add u-boot.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>